Question

fund the value the polynomial x2+2x +7 at x= 3​

Answer 1

Answer:

Let f(x)=x

2

+2x+5

When x=a,

f(a)=a

2

+2(a)+5

=a

2

+2a+5

Answer 2

Answer:

GIVEN POLYNOMIAL IS X²+2X+7

TAKING X=3

3²+2(3) +7=9+6+7=22

SO 22 IS YOUR ANSWER