Factor this polynomial completely x2 – 8x+ 12 O A. (x-2)(x-6) B. (x + 2)(x-6) c. (x – 2)(x+6) D. (x-3)(x – 4)

Question

Factor this polynomial completely
x2 – 8x+ 12
O A. (x-2)(x-6)
B. (x + 2)(x-6)
c. (x – 2)(x+6)
D. (x-3)(x – 4)

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Lệ Thu 2 weeks 2021-09-03T17:42:49+00:00 1 Answers 0 views 0

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    2021-09-03T17:44:00+00:00

    Answer:

    (x-2)(x-6)

    Step-by-step explanation:

    We look for two integers which multiply to +12 but add to -8 and we find those numbers by looking at the factors of 12={1,2,3,4,6,12}

    We find that by picking 6 and 2,6×2=12 but 6+2 is not -8 so we tweak that as -6 and-2

    By so doing, now -6×-2=12,-6+(-2)=-8

    so we factor to get (x-2)(x-6)

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )