Search for tag: "things"

Simplifying a radical expression with an odd exponent

Shows how to separate out the persct square so they can become whole numbers or expression leaving the remaining factors under the square root.

From  Tom Grant 18 plays 0  

Complex fraction made of sums involving rational expressions: Problem type 1

Simplifies a complex fraction by multiplying the top and bottom by the common denominator of the smaller fractions so their denominators can be eliminated. Further simplification is considered.

From  Tom Grant 20 plays 0  

Least common multiple of two monomials

A clarification on what common multiple means and why the least common one is larger than or at least as large as either number or expression. Then there follows an example of two multivariate…

From  Tom Grant 8 plays 0  

Simplifying a ratio of polynomials using GCF factoring

This shows the results of factoring the GCF from the numerator and denominator of an algebraic fraction and then reducing using the division of identical factors resulting in replacing them with 1…

From  Tom Grant 10 plays 0  

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…

From  Tom Grant 15 plays 0  

Power and quotient rules with positive exponents

A simplification of a fraction with products and exponents in parentheses raised to an external power

From  Tom Grant 7 plays 0  

Product rule with positive exponents: Multivariate

A straightforward examplel of a simplification using the product rule for exponents.

From  Tom Grant 14 plays 0  

Solving a system of linear equations using elimination with addition

This talks about why we need two equations to solve for two unknown values, and then demonstrates how to add two equations together to eliminate one varaible and solve for the other one, then find…

From  Tom Grant 12 plays 0  

Translating a sentence into a multi-step equation

Shows how to interpret a verbal description into an mathematical equation.

From  Tom Grant 15 plays 0  

Solving for a variable in terms of other variables in a linear equation with fractions

This describes the process of solving for a particular variable in terms of other variables in an equation. There is a need to go further to combine like terms before it is complete.

From  Tom Grant 18 plays 0  

Solving for a variable in terms of other variables using addition or subtraction: Advanced

Describes how to rearrange a simple formula with several variables so that a different and particular one is isolated.

From  Tom Grant 8 plays 0  

Introduction to solving an equation with variables on the same side

A short and simple demo about adding like variable terns that are together on one side of the equals sign in an equation.

From  Tom Grant 6 plays 0  

Multiplicative property of equality with whole numbers

A quick statement of the property followed by two examples of its use.

From  Tom Grant 6 plays 0  

Additive property of equality with whole numbers

A short demo involving subtracting whole numbers from both sides of an equation. There are two examples.

From  Tom Grant 4 plays 0  

Evaluating a quadratic expression: Integers

Given a value for the variable, here a quadratic expression is then calculated with that given value put in place of the variable.

From  Tom Grant 7 plays 0  

Word problem involving radical equations: Advanced

This shows how to insert the given value into a given radical equation and solve for the other variable inside a square root.

From  Tom Grant 9 plays 0