$\left(\frac{1}{2}x+2y\right)^3$
$-63-72-68$
$-10x^4+\:5x\:^3+20x^2$
$b^2-2b+1$
$2a+2-4a+6$
$\int\frac{x^2}{x-10}dx$
$y=2x^2,x=1,x=2$
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