$x^4+4x^3+6x^2+4x+1$
$\int\left(x+1\right)^3\ln\left(x+1\right)dx$
$820+-6$
$2800\cdot27$
$6x\cdot9$
$-7x^2-10x+9$
$\frac{2x-1}{x^4-1}$
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