Question

if x is equal to 2 is a zero of the polynomial P(x) = x² + X + 2 - a then the value of P(P(2) is​

Answer 1

Given polynomial p(x)=2x

2

−3x+7a is zero polynomial if x is 2

Replace x by 2 we get

∴2(2)

2

−3(2)+7a=0

⇒2×4−3×2+7a=0

⇒8−6+7a=0

⇒2+7a=0

Add -2 both sides we get

2+7a−2=0−2

⇒7a=−2

Divided by 7 both side we get

a=−

7

2

So a=−

7

2

Answer 2

Answer:

2-a

Step-by-step explanation:

as given 2 is root of p(x) we just  put the p(2) i.e 0 in p(x) , hence get ans