$\int3x^2\arcsin\left(x\right)dx$

$\int e^{\frac{x}{5}}dx$

$2y\left(x\right)=\left(x-x^3cos\left(y\left(x\right)\right)\right)y'\left(x\right)$

$\lim_{x\to\infty}\left(\frac{9x^{\:3}}{e^{8x}}\right)$

$12a-5b+\left(3a-2b\right)-\left(8b-10\right)$

$3x^4+x^3+5x^2+3x+3+3x^4-4x^3+5x^2+x-1$

$\int2+\tan\:^2\left(x\right)dx$