SOLUTION: Solve the equation by extracting the square root. -7(x^2-10)^2-6=-258

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Solve the equation by extracting the square root. -7(x^2-10)^2-6=-258      Log On


   

Question 912800: Solve the equation by extracting the square root.
-7(x^2-10)^2-6=-258
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
-7%28x%5E2-10%29%5E2-6=-258

-7%28x%5E2-10%29%5E2=-258%2B6

%28x%5E2-10%29%5E2=%28-258%2B6%29%2F-7

%28x%5E2-10%29%5E2=%28-252%29%2F-7

%28x%5E2-10%29%5E2=36

x%5E2-10%29+=+%2B%2F-+6

x^2= 10-6 =4
x=+/-2
OR
x^2-10=6
x^2=16
x= +/- 4