$\int\sin\left(x\right)^{.5}\cdot cos^3x$

$\int\left(y\csc\left(3y^2\right)\cot\left(3y^2\right)\right)dy$

$2m-3n-2m+n-m-n$

$x^2-5x-25=4$

$xy-y^2-2y$

$\int\left(\frac{45x^9-2}{x}\right)dx$

$3\left(-2\right)+\left(-2\right)\left(-3\right)+\left(-3\right)-5\left(-1\right)+3$