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8 July, 20:16

Evaluate the expression when y=-7.

y? + 4y-1

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Answers (1)
  1. 8 July, 21:28
    0
    20

    Step-by-step explanation:

    y^2+4y-1 = (-7) ^2+4 (-7) - 1 = (-7) (-7) - 28-1=49-28-1=21-1=20
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