Step 1: Divide by 9x: 9x (x2 + 3x - 10) = 9x(x + 5)(x - 2)
x^2-9x+18=(x-6)(x-3)
12x+14
(x+7)(x+2)
x2 - 9x + 8 = (x-1)(x-8)
x2-9x+18 = (x-3)(x-6) when factorised
Step 1: Divide by 9x: 9x (x2 + 3x - 10) = 9x(x + 5)(x - 2)
x2 - 9x + 18 = (x - 3)(x - 6)
x2+9x+18 find factors of 18 that add up to 9, in this case 6&3 (x+6)(x+3)
x^2-9x+18=(x-6)(x-3)
3(x2 + 3x + 1)
12x+14
(x+7)(x+2)
x2 - 9x + 8 = (x-1)(x-8)
(x-9)(x+9)
x2 - y2 + 9x - 9y =(x2 + 9x) - (y2 + 9y) =x(x + 9) - y(y + 9)================================Another way to go after it:x2 - y2 + 9x - 9y =(x2 - y2) + 9x - 9y =(x + y) (x - y) + 9 (x - y) =(x + y + 9) (x - y)
x2-9x = x(x-9)