bettycarter1932 bettycarter1932
  • 13-05-2020
  • Mathematics
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Which of the complete factorization of the polynomial below x^3+4^2-x-4

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sqdancefan
sqdancefan sqdancefan
  • 13-05-2020

Answer:

  (x +4)(x -1)(x +1)

Step-by-step explanation:

The sum of coefficients is zero, so we know that x=1 is a root and x-1 is a factor. We also notice that pairs of terms have coefficients in the ratio 1:4, so x+4 will also be a factor.

  = (x+4)(x^2) -1(x+4)

  = (x+4)(x^2 -1)

  = (x +4)(x -1)(x +1) . . . . . use the factoring of the difference of squares

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