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16 May, 00:43

Which of the following is the correct factorization of the polynomial below?

x³-15

A.) (x+3) (x-5)

B.) (x-3) (x+5)

C.) (x+3) (x²-4x+5)

D.) The polynomial is irreducible

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Answers (2)
  1. 16 May, 01:00
    0
    Step-by-step explanation:

    (x+3) (x-5)

    = x²-5x+3x-15 = x²-2x-15

    But the given polynomial x³-15

    So it is not the correct factorization.

    Again, (x-3) (x+5)

    = x²+2x-15

    But the given polynomial x³-15

    So it is not the correct factorization.

    Again, (x+3) (x²-4x+5)

    = x³-4x²+5x+3x²-12x+15

    = x³-x²-7x+15

    But the given polynomial x³-15

    So it is not the correct factorization.

    So, optionD is the correct answer
  2. 16 May, 03:26
    0
    Its not a correct factorization
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