SOLUTION: 8.) Solve by any method. x(x+1) = 12

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Question 165907: 8.) Solve by any method.
x(x+1) = 12

Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2%2Bx=12 restated x%5E2%2Bx-12=0 %28x%2B4%29%28x-3%29=0 so x=-4 and 3