mishkaallam13 mishkaallam13
  • 09-02-2019
  • Mathematics
contestada

Prove that the expression (y+8)(y–7)–y(y+1) is negative for any value of y.

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Аноним Аноним
  • 09-02-2019

Answer:

See below.

Step-by-step explanation:

(y+8)(y–7)–y(y+1)

= y^2 + y - 56 - y^2 - y

= -56.

So whatever the value of y the expression will be  -56 which  is negative.

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destinystar16 destinystar16
  • 09-02-2019
Y to the 3rd power subtracted by -57
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