KEY CONCEPT: (a-b)(a+b) = a^2-b^2 Since the middle terms equals zero, of the FOIL method all we need to do it the First and the Last. **NOTE: we subtract the first squared value with the second.

Polynomials Episode 10: Difference of Squares - 5:26

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Parabolas Ep. 4 - Looking at Parabolas When a is a Fraction - 10:07

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.1: Guideline to Factoring - 6:34

KEY CONCEPTS:(a+b)^2 = a^2+2ab+b^2 - square your a value - first term of your Perfect Square Trinomial - square your b value - third term of your Perfect Square Trinomial - multiply your a and b value together and then multiply that value by 2 to get your middle term of your trinomial

Polynomials Ep. 8: Special Products (a+b)2 - 6:13

KEY CONCEPTS: F.O.I.L Method - First - Outer - Inner - Last Multiplying binomials form trinomials

Polynomials Episode 10: Difference of Squares - 5:26

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