Question

Find the value of the polynomial p (x) = x^3 - 4x^2 + 3 at x = 2 and x = -1. Also find p(2) - p(-1)

Answer 1

Answer:

Given that: a polynomial as

P(x)=5x−4x

2

+3

To find value of polynomail at x=−1 or P(−1)

So we put x=−1 in polynomial,

P(−1)=5×(−1)−4×(−1)

2

+3

P(−1)=−5−4+3

P(−1)=−6

So value of polynomial at x=−1 is −6.

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