Consider f(x) = x³ - 75x - 250 as f(x) = 1x³ +0x² - 75x - 250 to perform synthetic division on with -5. -5|1 0 -75 -250 | -5 25 250 1 -5 -50 0 So we have factored f(x) = x³ - 75x - 250 as f(x) = (x+5)(x²-5x-50) which factors further as f(x) = (x+5)(x+5)(x-10) or f(x) = (x+5)²(x-10) Edwin