(x+12)(x-4)
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x + 4
If you mean: xsquared+8x-48 then it factors to (x-4)(x+12)
x2 + 2x - 48 = x2 + 8x - 6x - 48 = x(x + 8) - 6(x + 8) = (x - 6)(x + 8)
x2+8x+4 Delta = 82-4x1x4 = 48 = 4 x sqrt(3) so x2+8x+4= (x-((-8-sqrt(48))/2) (x-((-8+sqrt(48))/2) = (x+4+2 sqrt(3)) (x + 4 -2 sqrt(3))
x2-8x=0 ( add 8x to both sides) x2 =8x (divide by x) x=8 ( x2divided by x equals x)