find the following products (x+3)(x-4)
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Answer:
(x +3)(x-4)=0
x(x-4) + 3(x-4)=0
x^2 -4x + 3x -12 =0
x^2 -x -12 =0
x^2 -4x+ 3x-12 =0
x(x-4) -3(x-4) =0
(x-4) (x-3)=0
x-4 =0 x-3=0
........ ........ .................
x=4 x=3
..............
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