Search for tag: "minus"

84 Media

Solving a rational equation that simplifies to… duration 7 minutes 48 seconds Solving a rational equation that simplifies to… Solving a rational equation that simplifies to quadratic: Proportional form, advanced	Solving a rational equation that simplifies to quadratic: Proportional form, advanced This shows how to use the LCD of the two fractions that form a proportion to simplify the equation to a quadratic equation, then solve the quadratic by factoring and check the validity of the … math math emporium lcd proportion quadratic times side sides answers divide answer minus equals thing multiplies equation checks thirds threes possibility eliminate bottom lc From Tom Grant 10 plays 0
Solving an equation of the form x^2 = a using the… duration 5 minutes 25 seconds Solving an equation of the form x^2 = a using the… Solving an equation of the form x^2 = a using the square root property	Solving an equation of the form x^2 = a using the square root property Discusses the square root property, then encourages the viewer to write a list of perfect squares in the marginfor reference. Lasly, three examples are presented and solved. math math emporium square root propery real number root minus times answer words a. property numbers square equals instance side examples opposite lists room calculator head squares roots From Tom Grant 7 plays 0
Solving rational equations that simplify to… duration 10 minutes 26 seconds Solving rational equations that simplify to… Solving rational equations that simplify to quadratic: Binomial denominators & numerators	Solving rational equations that simplify to quadratic: Binomial denominators & numerators A The key to solving this kind of equation is multiplying through by the least common denominator to eliminate the fractions first, Then it is a matter of combining like terms on one side of the… math math emporium lcd rational equation factor check times side minus sides fraction bottom halves answers equals numbers drop u. denominators checks half answer fourths notice From Tom Grant 51 plays 0
Solving a quadratic equation by completing the… duration 8 minutes 9 seconds Solving a quadratic equation by completing the… Solving a quadratic equation by completing the square: Exact Answers	Solving a quadratic equation by completing the square: Exact Answers Two examples are shown here, one relatively easy, then one with some fractions involved. math math emporium factor perfect square trinomial square square root root halves minus sides answers blank pattern side fourths x. equals front graticlesn left symbol fourth underneath half factors From Tom Grant 4 plays 0
Solving a rational equation that simplifies to… duration 10 minutes 37 seconds Solving a rational equation that simplifies to… Solving a rational equation that simplifies to quadratic: Binomial denominators, constant numerators	Solving a rational equation that simplifies to quadratic: Binomial denominators, constant numerators The key to solving this equation is eliminating the fractions first by multiplying by the least common denominator and dividingout equal factors. Note that the integer term must be multiplied by… math math e lcd rational equation quadratic times side minus threes equations -14 sides parenthesis fraction half answers power equals answer multiplications parentheses factors multiplication denominator From Tom Grant 12 plays 0
Solving a word problem using a quadratic equation… duration 8 minutes 25 seconds Solving a word problem using a quadratic equation… Solving a word problem using a quadratic equation with irrational roots	Solving a word problem using a quadratic equation with irrational roots Shows how to substitite the given value for the output variable, then rearranges the resulting equation in standard form. Values for a, b, and c are identified and then entered into the quadratic… math math emporium quadratic formula standard form irrational rounding times height root values minus ft side equation answer formula left form gravity h. balls ft/s answers s. hundreds position From Tom Grant 25 plays 0
Graphing a parabola of the form y =- ax^2 + bs +… duration 4 minutes 11 seconds Graphing a parabola of the form y =- ax^2 + bs +… Graphing a parabola of the form y =- ax^2 + bs + c: Integer coefficients	Graphing a parabola of the form y =- ax^2 + bs + c: Integer coefficients Shows how to ofirst find the coordinates of the vertex, then choose other inputs to find two more points on each side of the vertex, plott them and draw the graph. math math emporium graph parabola vertex axis of symmetry minus times points side values answers direction symmetry axis opposite fractions numbers point dispositive parentheses calculation middle spaces From Tom Grant 4 plays 0
Rational exponents: Quotient Rule duration 1 minute 48 seconds Rational exponents: Quotient Rule Rational exponents: Quotient Rule	Rational exponents: Quotient Rule Demonstrates how the quotient rule for exponents is applied the same way to rational exponents. math math emporium lcd quotient rule for exponents exponent answer bottom half tower bar fraction instructions times denominator minus explanation rule quotient monomials From Tom Grant 14 plays 0
Adding rational expressions with linear… duration 2 minutes 15 seconds Adding rational expressions with linear… Adding rational expressions with linear denominators without common factors: Basic	Adding rational expressions with linear denominators without common factors: Basic A subtraction of fractionso where the denominators have no factors in common so we simpllly multiply the two together to create the LCD. Then both fractions are adjusted by multiplying each… math math empoirum lcd rational expressions fraction factors times bottom fun answer factor minus step numerators tops front form numbers denominator denominators fractions From Tom Grant 8 plays 0
Adding rational expressions involving different… duration 6 minutes 19 seconds Adding rational expressions involving different… Adding rational expressions involving different quadratic denominators	Adding rational expressions involving different quadratic denominators Adding ratioinal expressions with quadratic denominators requires factoring each denominator so that the LCD can be determined. Then each fraction is exapanded by multiplying the tops and the… math math emporium lcd factor quadratic numerator denominator least common denominator times x. fraction minus bottom factors negatives possibilities answer step result balance middle erps beginning combination From Tom Grant 6 plays 0
Adding rational expressions with common… duration 1 minute 44 seconds Adding rational expressions with common… Adding rational expressions with common denominators & GCF factoring	Adding rational expressions with common denominators & GCF factoring An example that is easy to combine with subtraction, in this case, because the two fractions have common denominators. However, be aware that there may be a way to simplifying the answer further. … math math emporium gcf factor common denominator b. answer minus expressions lancer bottom factors tops denominators fractions From Tom Grant 6 plays 0
Finding the LCD of rational expressions with… duration 3 minutes 43 seconds Finding the LCD of rational expressions with… Finding the LCD of rational expressions with quadratic denominators	Finding the LCD of rational expressions with quadratic denominators Each denominator is factored and then any common factor is used only once and all other unique factors complete the LCD math math emporium lcd least common denominator f. o. i. l. times factor negatives term x. factors denominator answer minus expression possibilities beginning end interproduct positives possibility foil pair binomials From Tom Grant 5 plays 0
Simplifying a ratio of linear polynomials: 1, -1,… duration 3 minutes 3 seconds Simplifying a ratio of linear polynomials: 1, -1,… Simplifying a ratio of linear polynomials: 1, -1, and no simplification	Simplifying a ratio of linear polynomials: 1, -1, and no simplification This shows four examples just to cover a variety of "looks". There is at least one of each tyoe, math math emporium factor ratio simplify divide to one bottom factoring subtraction hand token expression x. steps ways opposites minus places property thing addition matter answer result possibilities examples From Tom Grant 10 plays 0
Solving an equation written in factored form duration 2 minutes 36 seconds Solving an equation written in factored form Solving an equation written in factored form	Solving an equation written in factored form Starts with cautiioning against multiplying the factors back together and describes the zero product property to justify this warning. Then shows how to continue from the factored form to separate… math math emporium factor zero product property solution sides things equation minus factors solutions variable rest equals numbers property words variables squares equations beginning From Tom Grant 15 plays 0
Simplifying a sum or difference of two univariate… duration 2 minutes 0 seconds Simplifying a sum or difference of two univariate… Simplifying a sum or difference of two univariate polynomials	Simplifying a sum or difference of two univariate polynomials This shows both a subtraction and an addition example for finding the sum and difference of two trinomials. math math emporium sum difference addition subtraction minus parentheses thing polynomials xk answer opposite summer From Tom Grant 20 plays 0
Quotient rule with negative exponents: Problem… duration 54 seconds Quotient rule with negative exponents: Problem… Quotient rule with negative exponents: Problem type 1	Quotient rule with negative exponents: Problem type 1 A qucik example of applying the qoutient rule for exponents and the definition of a negative exponent. math math emporium base negative exponent quotient rule exponent n. a. definition means bottom minus exponents rule quotient From Tom Grant 8 plays 0