$\lim_{x\to1.01}\left(\frac{2x+1}{x-1}\right)$
$\int8x\left(3x^2+2\right)dx$
$240\cdot2\cdot2$
$x^4+0-x^2+0$
$x^2+3x^3+x^4$
$\left(2x+15\right)\left(2x-15\right)$
$4\left(3-8n\right)-148$
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