$x+13=-37$

$\int\left(160+t\right)\left(24\right)dt$

$\frac{1}{3}a^2-\frac{1}{4}\left(a\right)^2$

$4\left(x\:+\:8\right)\:+\:5\left(x\:-\:3\right)$

$2\cdot2\cdot2-1-2$

$5x^2+3x-\left(-3x^3+4x\right)+\left(6x^2-x^3+x\right)$

$\int_0^{\frac{\pi}{3}}sin\left(x\right)cos\:3\:\left(x\right)dx$