Wednesday, 12 February 2014

FACTORIZATION C2


Factorize 1 - d2

solution

we use difference of two squares a2 – b2 = (a - b)(a + b)

1-d2 = 12-d2

      = (1 - d)(1 + d)


Hence 1-d2 = (1 - d)(1 + d)

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