Foil method

Learn how to easily multiply binomials using the Foil method. Explore step-by-step examples and practice problems to improve your algebra skills.
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I observed an Algebra class recently where students were trying to multiply two polynomials, (x + 5) and (3x2 - 5x - 4). And as I roamed the room, I noticed several students who were stuck because they couldn’t “FOIL it.” Others, meanwhile, did FOIL it and came up with an incorrect product, 3x3 + 15x2 - 4x - 20, as a result (instead of 3x3 + 10x2 - 29x - 20).

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Amanda Munoz Guzman