Respuesta :

X=2.5
X=-2.5 
I think. 
I hope this helps!
HuytPOl
Throw -25 on the other side making it 4x^2 = 25
Then, divide 4 on both sides making it x^2 = 25/4
Now square root both sides, and get your answer
x = +/- (plus or minus) 5/2.

Hope this helps!