It is 6x(2x+5) when factored
x4 - 4x3 - 12x2 -32x + 64 (x - 4)(x + 2)(x + 2)(x - 4)
12x ^2 -32x-12
64
64
4x^2 + 32x + 64 = 4(x^2 + 8x + 16) = 4(x + 4)^2 = 4(x + 4)(x + 4)
-4x2 - 32x + x + 8 = 8x2 - 56x : simplify and group the various terms-32x + 56x + x + 8 = 8x2 + 4x225x + 8 = 12x2 : Now present this as a standard quadratic equation.12x2 - 25x - 8 = 0 : Solving for the roots of a quadratic equation gives :-x = [25 ± √(252 + 4x12x8)] ÷ 2x12 = [25 ± √1009] ÷ 24 = [25 ± 31.765] ÷ 24x = 56.765/24 = 2.365 and x = -6.765/24 = -0.282x = 2.365 and -0.282
4x + 32x + 9 = 36x + 9
32x + 8 – 34x
If 32X + 53 = 501, then 32X = 448, and X = 448/32 = 14.
35x + 10
That's pretty easy. Just add the like terms (2x and 32x) and keep the 3. You get 34x plus 3.
Isolating xx = (6+6)/32x = 0.375