Solve for k
k=x\left(4x^{2}+3x-6\right)
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3x^{2}-6x-k=-4x^{3}
Subtract 4x^{3} from both sides. Anything subtracted from zero gives its negation.
-6x-k=-4x^{3}-3x^{2}
Subtract 3x^{2} from both sides.
-k=-4x^{3}-3x^{2}+6x
Add 6x to both sides.
-k=6x-3x^{2}-4x^{3}
The equation is in standard form.
\frac{-k}{-1}=\frac{x\left(6-3x-4x^{2}\right)}{-1}
Divide both sides by -1.
k=\frac{x\left(6-3x-4x^{2}\right)}{-1}
Dividing by -1 undoes the multiplication by -1.
k=-x\left(6-3x-4x^{2}\right)
Divide x\left(-4x^{2}-3x+6\right) by -1.
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