pottersheep
  • pottersheep
Pleaseeee help, Grade 12! If x^3 - 4x^2 +kx =0 what value of k would result in two equal roots?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
x(x^2-4x+k)=0 16-4k=0 so k=4
pottersheep
  • pottersheep
thank you so much
anonymous
  • anonymous
np

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pottersheep
  • pottersheep
sorry where did 16 -4k come from?
anonymous
  • anonymous
b-sqrt(b^2-4ac)... that formula. so b^2-4ac=4^2-4k. as you can see, you can factor out an x to get a quadratic equation, use the quadratic formula to solve that equation and there you go :)
pottersheep
  • pottersheep
oooo thanks!

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