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Divide using long division or synthetic division.

(21x^3 - 7)/(3x - 1)
This is what I have so far, but I am having a hard time with what to do next.

3x-1/ 7(3x^3-1)

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horrible division!

it is hard to show long division on here, but the answer I got was

(21x^3 - 7)/(3x - 1) = (7x^2 + (7/3)x + 7/9) - 56/(9(3x-1))

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