Asked by margie (:

x^2=20

x= ??
Answered by Ms. Sue
Take the square root of both sides of the equation to find the value of x.
Answered by drwls
There will be both positive and negative answers, and the number is between 4 and 5. (or -4 and -5)
Answered by margie (:
so would i write , x=-4,4,-5,5 ?
Answered by drwls
No, you should do the square root calculation yourself. If you do not have a hand calculator or a "log table", use
http://www.math.com/students/calculators/source/square-root.htm
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