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02-03-2017
Mathematics

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What is the factor of x^2 -9x +18

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02-03-2017

x^2 - 9x + 18
factors of 18: 1*18, 2*9, 3*6,
the sums of the factors: 19, 11, 9
the positive 18 tells us both factors have the same sign, the negative 9 tells us they are both negative
(x - 3)(x - 6)

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