Question

If y = -2, find the value of 2y - y2 + 5y - 1​

Answer 1

y= -2

2y-y2 + 5y-1

=-4+4-10-1

= -11 is the answer.

Answer 2

Answer:

y=-2

2(-2)-(-2)²+ 5(-2)-1

= -4-4-10-1

= -19

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