Question

find the value of polynomial x^3 -2x^2- x+2 at:-. x=1 and x= -1​

Answer 1

Check the solution above,

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Answer 2

Answer:

p(1) = 0

p(-1) = -2

Step-by-step explanation:

x^3 - 2x^2 - x + 2 x = 1, -1

At x = 1

p(1) = (1)^3 - 2(1)^2 -1 + 2

= 1 - 2 - 1 + 2

= 0

At x = -1

p(-1) = (-1)^3 - 2(-1)^2 - 1 + 2

= -1 - 2 - 1 + 2

= -2

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