Monday 31 October 2016

FACTORIZING 1


Factorize 625x- 81y2

Solution

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

625x2- 81y2  = 252x2 - 92y2

                   = (25x)2 - (3y)2

                   = (25x - 3y)( 25x + 3y)

Hence 625x2 - 81y2 = (25x - 3y)(25x + 3y)

TRY THIS………………………….



factorize 49m2- 36n2

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