SOLUTION: Solve for x in the lowest possible terms. 2x^2=162

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Question 2143: Solve for x in the lowest possible terms. 2x^2=162
Answer by matthew_sessoms(39) About Me  (Show Source):
You can put this solution on YOUR website!
Divide by the 2.
x%5E2+=+162%2F2
Which simplifies to be...
x%5E2+=+81


Now, take the square root of the 81...
x+=+sqrt%2881%29
Which is...
x = 9 & -9
Always use + & - when you have an even number for the index.
MS