Question

if p(x)=x³+ 3x²- 7 x + 9 then find the value of p(2)+ P(-2) -p(0)​

Answer 1

Answer:

p(x)=x³+3x²-7x+9

p(2)=2³+3(2)²-7(2)+9

=8+12-14+9

=29-14

=15

p(-2)=(-2)³+3(-2)²-7(-2)+9

= -8+12+14+9

= -8+35

= -27

p(0)=0³+3(0)²-7(0)+9

=9

Now, p(2)+p(-2)-p(0)

=15+(-27)+9

=24+(-27)

= -3