X^3 (3)(x^2+1)^2 (2x)+(x^2+1)^3 (3x^2) Please help. I have tried multiple times.
6x^4(x^2+1)^2 + 3x^2(x^2+1)^3 3x^2(x^2+1)^2 (2x^2+x^2+1) 3x^2(x^2+1)^2 (3x^2+1)
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