Question

solve for x 4x(x-8)-5x(x-7)=-4

Answer 1

x = -1, 4

Answer 2

it comes out to -x^2+3 x+4 = 0

Answer 3

x = -1 or, 4

Answer 4

4x(x-8)-5x(x-7)=-4
4x^2 - 32x - 5x^2 + 35 = -4
-x^2 -32x + 35 = -4
0 = x^2 + 32x - 39
x^2 + 32x - 39 = 0

x = -16 - Sqrt[295] and x = -16 + Sqrt[295]