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factor the following equation:

6x^2 - 21x - 9

i've tried to factor it and can only get answers for 6x^2 - 21x + 9!

Start by dividing by 3.

6x^2 - 21x + 9 = 3(2x^2 -7x +3)
= 3(2x-1)(x-3)

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