Question

find the value of the polynomial z square + 2 z + 7 at (i) Z= -1​

Answer 1

Answer:

I hope it will help you

Step-by-step explanation:

Thank you

Answer 2

Answer:

p(-1)=4

Step-by-step explanation:

p(z)=$z^{2} +2z+7$

put z=-1

p(-1)=(-1)²+2(-1)+7

p(-1)= -1-2+7

p(-1)= -3+7

p(-1)=4