lightbrightaj lightbrightaj

19-07-2018
Mathematics

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when asked to factor the trinomial x^2-18x+81 a student gives the answer (x-9(x+9) which of the following statements is true

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xjayde28x xjayde28x

19-07-2018

(x - 9)(x + 9) would give you x^2 - 81 when you get a plus and minus like that after you factor the middle term is canceled out so the answer would be (x - 9)^2

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sistersbypride sistersbypride

02-11-2018

the answer is incorrect; the plus sign should be a minus sign

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