SOLUTION: One last question I am stuck on. Please help: x(9x+7)=4x^2 -4x+36

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: One last question I am stuck on. Please help: x(9x+7)=4x^2 -4x+36      Log On


   

Question 870034: One last question I am stuck on. Please help:
x(9x+7)=4x^2 -4x+36
Found 2 solutions by Alan3354, ewatrrr:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
x(9x+7)=4x^2 -4x+36
9x^2+7x = 4x^2 -4x+36
5x^2 + 11x - 36 = 0
Can you do the rest?

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
x(9x+7)=4x^2 -4x+36
9x^2 + 7x = 4x^2 -4x+36
5x^2 + 11x - 36 = 0
(5x - 9)(x +4) = 0, x = -4, 9/5