SOLUTION: 2x-72=0 the book says the answer is -6,6 but i dont know how

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Question 281305: 2x-72=0
the book says the answer is -6,6 but i dont know how
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
2x=72
x=36
perhaps the equation was
2x^2-72=0
x^2=36
x=-6
x=+6