SOLUTION: x(8-x)=15

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Question 198731: x(8-x)=15
Answer by checkley75(3666) About Me  (Show Source):
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x(8-x)=15
8x-x^2-15=0
x^2-8x+15=0
(x-5)(x-3)=0
x-5=0
x=5 ans.
x-3=0
x=3 ans.