SOLUTION: 10x^2 = 100 how do I work it out so that I get x= +/- √10?

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Question 589717: 10x^2 = 100
how do I work it out so that I get x= +/- √10?
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
10x%5E2+=+100+
divide both sides by 10:
%2810x%5E2%29%2F10+=+100%2F10+
x%5E2+=+10+
take the square root of both sides:
sqrt%28x%5E2%29+=+sqrt%2810%29+
x+=+sqrt%2810%29+ (plus or minus)