Question 667429: |x^2+x|=12
Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! |x^2+x|=12
------
x^2+x = 12 or x^2+x = -12
-----
Rearrange:
x^2 + x -12 = 0 or x^2 + x + 12 = 0
(x+4)(x-3) = 0 or x = [-1+-sqrt(1-4*12)]/2
---
x = -4 or x = 3 are the Rational solutions
============================================
Cheers,
Stan H.
===============
|
|
|