dankestmemesaus dankestmemesaus
  • 22-10-2017
  • Mathematics
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Which is the completely factored form of 12x3 – 60x2 + 4x – 20?

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jordanmelis
jordanmelis jordanmelis
  • 22-10-2017
completely factored it is (12x^2 + 4)(x-5)
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Аноним Аноним
  • 22-10-2017
= 4(3x^3 - 15x^2 + x - 5)

 product of first coefficient and -5 is -15  so  one factor could be x +/ 3) or x +/- 5)

using the factor theorem   f(5) =  375 - 375=5-5 = 0  so (x - 5) is a factor:-

so we have  4(x - 5)(3x^2 + 1)   Answer
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