SOLUTION: x^2-12x+27

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Question 302439: x^2-12x+27
Answer by london maths tutor(243) About Me  (Show Source):
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x%5E2+-+12+x+%2B+27
=%28x-3%29%28x-9%29
The product of -3 and -9 give + 27
and
the sum of (-3) and (-9) give - 12