Evaluate the expression when y=-2. y^2+5y+7

Question

Evaluate the expression when y=-2.
y^2+5y+7

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Sapo 3 years 2021-08-29T05:56:36+00:00 1 Answers 4 views 0

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  1. quangkhai
    0
    2021-08-29T05:58:05+00:00
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    Answer:

    1

    Step-by-step explanation:

    (-2)^2 +5(-2)+7=

    = 4-10+7=

    =1

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