24x^3=10x^2+4x I know the roots for this equation but I cannot figure out the check.

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asked May 21, 2015 74.8k views

1 vote

24x^3=10x^2+4x I know the roots for this equation but I cannot figure out the check.

Mathematics
high-school

Runnerpaul asked

by Runnerpaul

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$24x^3=10x^2+4x \\ 24x^3-10x^2-4x=0\\ 2x(12x^2-5x-2)=0\\ 2x(12x^2+3x-8x-2)=0\\ 2x(3x(4x+1)-2(4x+1))=0\\ 2x(3x-2)(4x+1)=0\\ x=0 \vee x=(2)/(3) \vee x=-(1)/(4)$

Hassane answered May 28, 2015

by Hassane

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