SOLUTION: solve for x 3x^2 -5x -4 = x(2x +3) +5

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: solve for x 3x^2 -5x -4 = x(2x +3) +5      Log On


   

Question 619351: solve for x
3x^2 -5x -4 = x(2x +3) +5
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
3x^2 -5x -4 = x(2x +3) +5
3x^2 -5x -4 = 2x^2 +3x +5
x^2 -5x -4 = 3x +5
x^2 -8x -4 = 5
x^2 -8x -9 = 0
(x+1)(x-9) = 0
x = {-1, 9}