Additional Problem That Requires Factoring, An
A shortcut for working with rational expressions with a denominator that need to be factored is presented.
Additive Inverses
An explanation of how to solve an algebraic equation by multiplying.
Additive and Multiplicative Inverses
Every number except zero has a multiplicative inverse. An explanation of multiplicative inverses and their usefulness in solving algebraic equations.
An Identity Equation
A summary of additive and multiplicative inverses.
Another Literal Equation
Solving a literal equation: C = NC 9.
Applying the Slope Formula to a Graph
Using the slope formula to plot a graph.
Approximate Square Roots
Finding the approximate square root for numbers that are not perfect squares is demonstrated. Irrational numbers are explained.
Approximating the Value of a Solution
Sometimes it makes sense to approximate the value of a solution. An example is given and the solution found.
Associative Law for Addition
The associative law for addition: (a b) c = a (b c).
Associative Law for Multiplication
The associative law for multiplication: (ab)c = a(bc). The commutative and associative laws for multiplication can be combined. The use the associative and commutative laws together in a multiplication problem is demonst..