Question

if 2 is a polynamial p(x) =2x​

Answer 1

Answer:

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

​

Step-by-step explanation:

Answer 2

Answer:

p(x) = 2x

p(2) = 2(2)

        = 4