If p(x) = 2x³ - 3x² + 4x - 2, then p(-1) is?

Solution:

Given, p(x) = 2x³ - 3x² + 4x - 2

We have to find p(-1).

To find p(-1), put x = -1 in the given polynomial.

p(-1) = 2(-1)³ - 3(-1)² + 4(-1) - 2

= -2 - 3 - 4 - 2

= -5 - 4 - 2

= -5 - 6

= -11

Therefore, p(-1) is -11.

Example:

If p(x) = 2x³ - 3x² + 4x - 2, then p(1) is?

Solution:

Given, p(x) = 2x³ - 3x² + 4x - 2

We have to find p(1).

To find p(-1), put x = -1 in the given polynomial.

p(-1) = 2(1)³ - 3(1)² + 4(1) - 2

= 2 - 3 + 4 - 2

= -1 + 2

= 1

Therefore, p(1) is 1.

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If p(x) = 2x³ - 3x² + 4x - 2, then p(-1) is?

Summary:

If p(x) = 2x³ - 3x² + 4x - 2, then p(-1) is -11. To find p(-1), put x = -1 in the given polynomial.