x2-6x-27 = (x+3)(x-9) when factored
x2 + 6x + 8 =(x + 2)(x +4)
X2 - 16(X - 4)(X + 4)============X2 + 16===========not factorable in real numbers
The GCF is x2
If you are looking to factor x^2-6x-40 it'd be (x-10)(x+4). There are two possible solutions. (10,-4)
x2 - 6x - 16 = (x + 2)(x - 8)
16 + 6x - x2 = 16 + 8x - 2x - x2 = 8*(2 + x) - x*(2 + x) = (8 - x)*(2 + x)
x2 + 6x - 2 can not be factored
x2 - 6x - 16 = (x - 8)(x + 2)
-x2 + 6x + 16 = -(x2 - 6x - 16) = -(x - 8)(x + 2) = -(8 - x)(x + 2)
x2-6x can be factored into x(x-6). Simply factor out the "x" from both factors.
4
x2 + 6x = 16=> x2 + 6x - 16 = 0=> x2 + 8x -2x - 16 = 0=> (x+8)(x-2) = 0=> x = -8 or x = 2So, the solutions of the quadratic equation x2 + 6x = 16 are -8 and 2.
If you mean: 8x2-56x-64 which becomes x2-7x-8 and is (x-8)(x+1) when factored
x2 - 6x = 16 ∴ x2 - 6x + 9 = 25 ∴ (x - 3)2 = 25 ∴ x - 3 = 25 ∴ x = 28
x2 + 6x + 8 = (x + 4)(x + 2)
x2-6x+9 = (x-3)(x-3) when factorised.