SOLUTION: Solve the equation by using the square root method. {{{x^2=256}}} I am having a hard time figuring out this problem. Please help and show the steps involved.

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Solve the equation by using the square root method. {{{x^2=256}}} I am having a hard time figuring out this problem. Please help and show the steps involved.       Log On


   

Question 88705: Solve the equation by using the square root method. x%5E2=256
I am having a hard time figuring out this problem. Please help and show the steps involved.
Found 2 solutions by jim_thompson5910, stanbon:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2=256

sqrt%28x%5E2%29=sqrt%28256%29 Take the square root of both sides



which breaks down to

x=16 or x=-16

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Solve the equation by using the square root method. x^2 = 256
Rewrite as x^2 = 2^8
Take the square root of each side to get:
x = 2^4 = 16 or x = -2^4 = -16
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Cheers,
Stan H.