x2-9x can be factored by taking x out of each term x(x-9)
- 8x2
(9x2 + 7)(9x2 - 7) = 81x4 - 49
x2 - 9x + 8 = (x-1)(x-8)
(9x + 7)(x - 2)
If you mean: x squared+9x+14 = 0 then by using the quadratic equation formula x = -2 or x = -7
x2 + 9x2 = 10x2
9x squared-15x squared = -6
(9x)2 = 81x2
Step 1: Divide by 9x: 9x (x2 + 3x - 10) = 9x(x + 5)(x - 2)
-9(x + 8)
Integral : 9x + 8 = 9(x squared)/2 + 8x Differential : 9x +8 = 9