FACTORIZING 1

Factorize 625x² - 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