SOLUTION: |2x^2 + 3| = 7x

Algebra ->  Test -> SOLUTION: |2x^2 + 3| = 7x      Log On


   



Question 622651: |2x^2 + 3| = 7x
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
|2x^2 + 3| = 7x
solve for two conditions:
2x^2+3=7x
2x^2-7x+3=0
(2x-1)(2x-3)=0
x=1/2
or
x=3/2 (reject, does not check)
..
2x^2+3=-7x
2x^2+7x+3=0
(2x+1)(2x+3)=0
x=-1/2 (reject, does not check)
or
x=-3/2 (reject, does not check)
solution: x=1/2