As written, that's 2(x - 6)
You may have meant 4x^2 - 2x - 12 which would be 2(2x + 3)(x - 2)
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4x2-4x-120 = (2x+10)(2x-12) when factored
It can be. 2x is a factor of 4x.
2x(2x - 1)
5-4x=12-2x isolate your x's on one side 5=12-2x+4x 5-12=-2x+4x simplify -7=2x divide by 2 x=-7/2, or x=-3.5
-2x=-4x*24 x=12