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31 October, 08:58

The factor theorem of algebra states that if a polynomial, P (x), is divided by x-a, then the remainder is P (a). Verify the remainder theorem by showing that when x^2-2x-16

is divided by x+3 the remainder is the same as P (-3).

Remainder for (x^2-2x-16) / (x+3) ?

P (-3) ?

+1
Answers (1)
  1. 31 October, 10:00
    0
    Okay ... by using long division method first

    we have

    x²-2x-16 : x+3

    quotient = x-5, remainder = - 1

    using factor Theorem

    we have

    f (-3) = (-3) ² - 2 (-3) - 16 = 9+6-16 = - 1 (remainder)

    so the remainder theorem is valid
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