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Pleaseeee help, Grade 12!
If x^3  4x^2 +kx =0
what value of k would result in two equal roots?
 one year ago
 one year ago
Pleaseeee help, Grade 12! If x^3  4x^2 +kx =0 what value of k would result in two equal roots?
 one year ago
 one year ago

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josiahhBest ResponseYou've already chosen the best response.2
x(x^24x+k)=0 164k=0 so k=4
 one year ago

pottersheepBest ResponseYou've already chosen the best response.0
sorry where did 16 4k come from?
 one year ago

josiahhBest ResponseYou've already chosen the best response.2
bsqrt(b^24ac)... that formula. so b^24ac=4^24k. 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 :)
 one year ago
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