$3y=\left(3\cos\left(x\right)+2x-5\right)^{21}$
$\int\frac{\sqrt[2]{t}+3}{t+3}dt$
$\lim_{x\to-\pi}\sqrt{x+9}\cos\left(x+\pi\right)$
$\int\frac{6x^2-3x+5}{x^3-x^2}dx$
$16x-16-15x-45$
$\int\left(8x^3\right)\left(e^{2x^4}\right)dx$
$-2x^2+30x=112$
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