Question

If P(x)= x³–1 then the value of P(1) + P(-1) is
0
1
2
–2​

Answer 1

Answer:

–2

Explanation:

p(x) = x³ – 1

putting the value of x as 1 and –1

so, p (1) = (1)³ – 1 = 0

and p(–1) = (–1)³–1 = –2

so, p(1) + p(–1) = 0 + (–2) = –2

Answer 2

Explanation:

P(1)= 1^3- 1

=1-1

=0 _______ (1)

P(-1)= -1^3-1

=-1-1

=-2 _______ (2)

Adding P1 and P2

0+(-2)

0-2

-2 is the answer