8x^2(x+3)-8x(x+1)^2=8x^2-32.8x^2(x+3)-8x(x+1)^2=8x^2-32
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8x^2(x+3)-8x(x+1)^2=8x^2-32.8x^2(x+3)-8x(x+1)^2=8x^2-328x^2(x+3)-8x(x+1)^2=8x^2-32.8x^2(x+3)-8x(x+1)
8x^2(x+3)-8x(x+1)^2=8x^2-32.8x^2(x+3)-8x(x+1)^2=8x^2-32
8x^2(x+3)-8x(x+1)^2=8x^2-32.
8x^2(x+3)-8x(x+1)^2=8x^2-32
8x^2(x+3)-8x(x+1)^2=8x^2-32.8x^2(x+3)-8x(x+1)^2=8x^2-32
8x^2(x+3)-8x(x+1)^2=8x^2-32
8x^3+24x^2-8x^3-16x^2-8x=8x^2-32
8x=32
x=4