SOLUTION: How do you solve 5m2+7=52 by taking square roots

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Question 876380: How do you solve 5m2+7=52 by taking square roots
Answer by KMST(5347) About Me  (Show Source):
You can put this solution on YOUR website!
5m%5E2%2B7=52 If we subtract 7 from both sides of the equal sign, we get
5m%5E2=52-7
5m%5E2=45 Iwwe divide both sides of the equal sign by 5, we get
m%5E2=45%2F5
m%5E2=9
There are two numbers that, when squared, equal 9.
(We could say that we are "taking square roots of both sides of the equal sign, but there is also the messy issue of those %22%2B%22 and %22-%22 signs).
m%5E2=9 ---> system%28m=sqrt%289%29%2C%22or%22%2Cm=-sqrt%289%29%29 ---> highlight%28system%28m=3%2C%22or%22%2Cm=-3%29%29