batcat23
batcat23 batcat23
  • 17-03-2017
  • Mathematics
contestada

solve the polynomial equation by factoring: 2x^3 - 12x^2 = 32x - 192

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8828
8828 8828
  • 17-03-2017
x=6,−4,4 these are the answers
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apologiabiology
apologiabiology apologiabiology
  • 17-03-2017
first divide both sides by 2
x³-6x²=16x-96
minus 16x from both sides and dd 96 to both sides
x³-6x²-16x+96=0
factor by grouping
(x³-6x²)+(-16x+96)=0
(x²)(x-6)+(-16)(x-6)=0
undistribute the (x-6)
(x²-16)(x-6)=0
(x-4)(x+4)(x-6)=0
set each to zero
x-4=0
x=4
x+4=0
x=-4
x-6=0
x=6


x=-4, 4, and 6
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