SOLUTION: x^2-225=0

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Question 443841: x^2-225=0
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
x^2-225=0
x^2-15^2=0 (difference of squares)
(x-15)(x+15) = 0
x = {-15, 15}