Factoring Ep.1: Guideline to Factoring - 6:34

KEY CONCEPTS:

First step to factoring, is to find a common factor.

After that, regardless of whether there is a common factor or not is to count the number of terms.

Based on that will determine how to Factor

Factoring Ep.7: Factor Difference of Squares - 7:19

KEY CONCEPTS:

Difference of squares are binomials with the function of subtraction separating the 2 terms. NEVER a positive value.

When Factoring such special quadratics:
i.) square root the first term and the second term
ii.) place the first value as the first term of 2 sets of binomials and the second value as the second term
iii.) in one set of binomials write a negative, and the second set a positive.

ie. x^2-81 = (x+9)(x-9)