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Listen "Polynomials Episode 10: Difference of Squares - 5:26"
Episode Synopsis
KEY CONCEPT:(a-b)(a+b) = a^2-b^2Since 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.
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Polynomials Ep. 7 - Multiplying Binomials
27/01/2009
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