JohnDoe9495 JohnDoe9495

13-09-2017
Mathematics

contestada

The polynomial (x − 1)*2 is a factor of the polynomial ax3 + bx2 + 1. find a and
b. justify your answer.

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Аноним Аноним

15-09-2017

If (x-1) is a factor then P(1) = a(1)^3 + b(1)^2 + 1 = 0 ( by the factor theorem)

so a + b = -1

Also (x - 1)^2 = x^2 - 2x + 1

so a = 1 and b = -2 Answer

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