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Algebra help factoring?
4x^2+9+12x-4y^2 write as
4x^2 - 12x + 9 - 4y^2 factor the first three terms
(2x - 3)(2x - 3) - 4y^2 simplify
(2x - 3)^2 - 4y^2 we have a difference of squares...so we have
[ (2x - 3) + 2y ] [ (2x - 3) - 2y ]