Question

If P(x) = x ^ 3 - 2x ^ 2 + 1 find the value of P(1) + P(- 1)

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Answer 1

Answer:

The value of P(1) + P(-1) is -2

Step-by-step explanation:

P(x) = x³ -  2x² + 1

P(1) = (1)³ - 2(1)² + 1

= 1 - 2 + 1

= 2 - 2

= 0

P(-1) = (-1)³ - 2(-1)² + 1

= -1 - 2 + 1

= -3 + 1

= -2

Now,

P(1) + P(-1)

0 + (-2)

-2