Question

The value of polynomial P(x) = 4x²- 7 at x =- 2 is​

Answer 1

Answer:

Given polynomial is p(x)=4x2−3x+7 

We need to find value of polynomial at x=1.

Then put the value of x=1 in the given polynomial, we get

p(x)=4(1)2−3(1)+7

⇒p(x)=4×1−3×1+7

⇒p(x)=4−3+7

⇒p(x)=11−3=8

So, value of polynomial is 8.

Answer 2

Answer:

4(-2)2-7 ( ya,here it is -2 whole square dont get confused)

4×4-7

8-7

=1

so 1 is the answer