FACTORIZING 4

Factorize 625x² - 169y²

Solution

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

625x²- 169y²  = 25²x² - 13²y²

                   = (25x)² - (13y)²

                   = (25x - 13y)( 25x + 13y)

Hence 625x² - 169y² = (25x - 13y)(25x + 13y)

TRY THIS………………………….

factorize 225c²- 36d²