Expand. Your answer should be a polynomial in standard form. (b^2 + 4b + 4 )(-b+3)=

Question

Expand.
Your answer should be a polynomial in standard form.
(b^2 + 4b + 4 )(-b+3)=

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Khang Minh 4 years 2021-08-22T22:27:02+00:00 1 Answers 10 views 0

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  1. Nho
    0
    2021-08-22T22:28:35+00:00
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    (b2+4b+4)(-b+3)

    (b2)(-b)+(b2)(3)+(4b)(-b)+(4b)(3)+(4)(-b)+(4)(3)

    -b3+3b2-4b2+12b-4b+12

    -b3-b2+8b+1

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