Question

The value of 5x2+6x+7 at x=-1

Answer 1

Answer:

-2

Step-by-step explanation:

5x2+6x7

= 5*-1*2+6*-1+7

= (-5+2)+(-6+7)

= -3+1

= -2

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Answer 2

Answer:

6

Step-by-step explanation:

5(-1)^2 + 6(-1) + 7

⇒5-6+7

⇒6

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