jann5316 jann5316
  • 25-08-2017
  • Mathematics
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When you solve the equation x^3-3x^2+2x=0, how many roots are greater than 1/2?

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ghanami
ghanami ghanami
  • 25-08-2017
hello : 
x^3-3x^2+2x=0
x(x²-3x+2) = 0
x(x-1)(x-2) = 0
x = 0 or x-1 = 0 or x-2= 0 
x = 0 or x = 1 or x = 2
two roots are greater than 1/2 : 1 and 2
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