Question

find the value of 5x+4x²+7 when x= -1​

Answer 1

Answer:

5x+4x2+7

-5+4+7

-5+11

6

Answer 2

Answer:

5x+4x(-1)^2+7

5x+(-4)x^2+7

5x-8x+7

2x=5-8+7

2x=4

x=4/2

x=2

Step-by-step explanation:

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