$\frac{dy}{dt}=2t-y$

$\int8^{-5x}dx$

$\int\frac{3x}{\left(x^2-1\right)^5}dx$

$\lim_{x\to\infty}\left(\frac{-2\sqrt{x}-2}{e^{\sqrt{x}}}\right)$

$\int x\cdot\cos\left(x\right)\sin^5xdx$

$\lim_{x\to0}\left(\frac{2x^2-3x}{\sin\left(x\right)}\right)$

$\left(6a^2+3b^3\right)^2$