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

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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?

Mathematics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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x(x^2-4x+k)=0 16-4k=0 so k=4
thank you so much
np

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sorry where did 16 -4k come from?
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 :)
oooo thanks!

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