SOLUTION: what are the solutions of the equation 2x^2 + x - 28 = 0 1.) 7/2,4 2.) 7/2,-4 3.) 2,7 4.) -2,7 5.) -2,-7

Algebra ->  Equations -> SOLUTION: what are the solutions of the equation 2x^2 + x - 28 = 0 1.) 7/2,4 2.) 7/2,-4 3.) 2,7 4.) -2,7 5.) -2,-7      Log On


   

Question 253724: what are the solutions of the equation 2x^2 + x - 28 = 0
1.) 7/2,4
2.) 7/2,-4
3.) 2,7
4.) -2,7
5.) -2,-7
Answer by unlockmath(1688) About Me  (Show Source):
You can put this solution on YOUR website!
Hello,
This 2x^2 + x - 28 = 0 can be factored:
(2x-7)(x+4)=0 Therefore:
x=7/2
x=-4
There you go. These can be plugged into the original equation to check it out.
RJ
Check out www.math-unlock.com