Question

. If P(x)= x2 + 3x + 2, find the value of P(1) +P(2) +P(3).​

Answer 1

Answer:

p(1)= 1²+3(1)+2

=1+3+2

=6

p(2)=2²+3(2)+2

=4+6+2

=12

p(3)= 3²+3(3)+2

= 9+9+2

=20

Answer 2

Answer:

Given polynomial is p(x)=x

2

−3x+2

Replace x by 0, we get

p(0)=(0)

2

−3(0)+2

⇒p(0)=0+0+2

⇒p(0)=2

Replace x by 1, we get

p(1)=(1)

2

−3(1)+2

⇒p(1)=1−3+2

⇒p(1)=0

Replace x by 2, we get

p(2)=(2)

2

−3(2)+2

⇒p(2)=4−6+2

⇒p(2)=0