$\left(b^2+2b\right)^2-2\left(b^2+2b\right)-3$
$-4+6-9-4+1$
$4b-7-8b$
$\frac{\pi^{11}}{\pi^7}$
$\left(x^4-81\right)\left(x-3\right)$
$\int x\sqrt{2x^2-1}\\:dx$
$\int_0^x\sin\left(4x-y\right)dx$
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