Using FOIL: (x+3)(x-3) equals x^2 -9 which is the difference of two squares
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(x + 3)(3x - 2)
15x minus 8=minus 180 3x+8=24
I think you mean (3x ± 1)^2 = (3x+1)(3x-1)?
the answer is -174
This simplifies to 3x-6+4y.