Question

verify that whether -2 and 3 are the zeros of the polynomial x^2-2x+5 20​

Answer 1

Answer:

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Answer 2

Answer:

Not zeroes

Step-by-step explanation:

x² - 2x + 5

Let p(x) = x² - 2x + 5

If p(-2) and p(3) are equal to zero then -2,3 are zeroes of the polynomial p(x)

p(-2) = (-2)² - 2(-2) + 5

        = 4 + 4 +5 = 13 ≠ 0

So -2 is not a zero of p(x)

p(3) = 3² - 2(3) +5

       = 9 - 6 + 5

       = 8 ≠ 0

∴ -2 ,3 are not zeroes of the polynomial p(x)