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Factor completely. Be sure to factor out the greatest common factor first if it is other than 1. (If the polynomial is prime, enter PRIME.)

56a^2+39ab-27b^2

1 answer

Can't really factor anything out of this.

(7 a - 3 b) (8 a + 9 b)

If you FOIL:

you get 56a^2+39ab-7b^2

I just kind of did trial and error.
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