SOLUTION: The exact solution(s) of log(3x^2 + 4x) = log(19x + 42)are as follows. (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.) x=?

Algebra ->  Exponents -> SOLUTION: The exact solution(s) of log(3x^2 + 4x) = log(19x + 42)are as follows. (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.) x=?      Log On


   

Question 628011: The exact solution(s) of log(3x^2 + 4x) = log(19x + 42)are as follows. (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.)
x=?
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
The exact solution(s) of log(3x^2 + 4x) = log(19x + 42)are as follows. (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.)
.
log(3x^2 + 4x) = log(19x + 42)
3x^2 + 4x = 19x + 42
3x^2 - 15x = 42
3x^2 - 15x - 42 = 0
x^2 - 5x - 14 = 0
(x+2)(x-7) = 0
x = {-2, 7}