zaycampbell11 zaycampbell11
  • 25-04-2017
  • Mathematics
contestada

which of the binomals is a factor of this trinomal? x^2-x-20

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alexel404
alexel404 alexel404
  • 25-04-2017
(X-5)(X+4) would be the correct binomial.
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XxLostAndBrokenxX
XxLostAndBrokenxX XxLostAndBrokenxX
  • 25-04-2017
x^ 2 - x - 30 = ( x + a)(x + b)

ab = -30 and a + b = -1

x - 6
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