$\int x\left(1-2x\right)dx$

$\int_0^{10}784\:x\:dx$

$cos\left(70-x\right)$

$\left(x+\sin\left(y\right)-\cos\left(y\right)\right)dx+x\left(\sin\left(y\right)+\cos\left(y\right)\right)dy$

$\left(9\:\frac{1}{2}a^2b^3\right)\left(-\frac{2}{19}a^{10}b^{10}\right)$

$\left(5x^5\right)^2\left(x^{10}\right)^{\frac{1}{2}}$

$\sec\left(b\right)-\cos\left(b\right)$