SOLUTION: Solve the equation: x(5x+28)=12 *Please show work :) Thank you!

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Question 604627: Solve the equation: x(5x+28)=12
*Please show work :) Thank you!
Answer by unlockmath(1688) About Me  (Show Source):
You can put this solution on YOUR website!
Hello,
This x(5x+28)=12 can be written as:
5x^2+28x-12=0
This can be factored as:
(5x-2)(x+6)=0
Now solve for x:
x=2/5
x=-6
Make sense?
RJ
www.math-unlock.com