Question

If p(x) = x2 + 3, then find p(2) + p(-2) class 9 maths polynomial​

Answer 1

Answer:

In both cases answer is +7

Step-by-step explanation:

p(2)= (2)²+3

= 4+3

= 7

p(-2)= (-2)²+3

= 4+3

= 7

Answer 2

We have,

$p(x)=x^2-2x+3$

To find, the value of p(-2) = ?

$∴ p(x)=x^2-2x+3$

Put p = - 2, we get

$p(-2)=(-2)^2-2(-2)+3$

$⇒ p(-2) = (- 2)^2 - 2( - 2) + 3$

⇒ p(-2) = 4 + 4 + 3

⇒ p(-2) = 11

∴ The value of p(-2) = 11

Thus, the value of p(-2) is equal to 11.