Answers

2014-02-25T11:35:26+08:00

FOIL= (3x-5)(2x+9) = 6x2+17x-45

DOTS (difference of two squares)= (7x+2)(7x-2) = 49x2-4

Square of a Binomial= (x+y)2= x2 +/- 2xy + y2

Square of a Trinomial= (a+b+c)2= a2+b2+c2+2ab+2ac+2bc

Cube of a binomial= (x+y)3= x3+3x2y+3xy2+y3

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