Search for tag: "negatives"

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…

From  Tom Grant 6 plays 0  

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

From  Tom Grant 5 plays 0  

Power rules with positive exponents: Multivariate products

An example of how we distribute an exponent outside of parentheses to all factors within.

From  Tom Grant 7 plays 0  

Writing an equation and graphing a line given its slope and y-intercept

The informaton given here can be entered directly into the y = mx + b or slope-intercept form. Then the y-intercept is used as a starting point where you apply rise over run to the given slope to…

From  Tom Grant 6 plays 0  

Set Builder Notation

Shows how to take the descriptive set builder notation and write a roster set to represent the same one.

From  Tom Grant 7 plays 0  

Multiplication of 3 or 4 integers

A review of the sign rules for multiplication and three examples to demonstrate these.

From  Tom Grant 9 plays 0  

Integer multiplication and division

A review of the sign results when multiplying integers and then three examples to demonstrate those rules.

From  Tom Grant 10 plays 0  

Addition and subtraction with 3 integers

This describes how integers interact when combined, treating minus signs as a negative sign on the number and thinking that all of the integers are being added with negatives and postives working in…

From  Tom Grant 11 plays 0  

Solving a radical equation that simplifies to a quadratic equation: One radical, basic

This radical equation when sqaured to eliminate the sqaure root creates a quadratic equation that can then be solved by factoring.

From  Tom Grant 6 plays 0  

Simplifying a product of radical expressions: Univariate

Multiplying two radical expressions by showing the factorization of the numbers and using even exponents to remove variable factors.

From  Tom Grant 10 plays 0  

Rational exponents: Unit fraction exponents and bases involving signs

Two examples of how to deal with fractional exponents on negative numbers.

From  Tom Grant 9 plays 0  

Complex fraction without variables: Problem type 2

Shows how to simplify a large fractions with fractioins embedded in it. The simplest way involves multiplying all small fractions by their least common denominator so the individual denominators…

From  Tom Grant 9 plays 0  

Finding the LCD of rational expressions with quadratic denominators

Factoring quadratics to find the LCD of two fractions in algebra

From  Tom Grant 31 plays 0  

Finding the roots of a quadratic equation needing simplification

This demonstrates how some quadratic equations need to be simplified and put in standard form before the quadratic expression can be factored so the factors can be set to zero and solved.

From  Tom Grant 11 plays 0  

Graphing a function of the form f (x) = ax + b: Fractional slope

Shows how thits form is simply the same as y = mx + b, and then writes the slope and y-intercpt down. It ends with using these to graph the line of points that satisfy this function.

From  Tom Grant 99 plays 0  

Evaluating functions: Linear and quadratic or cubic

Speaks to the meaning of f(x), i.e. function notation. Then demnstrates how to get the value of two different functons given the input value.

From  Tom Grant 97 plays 0