$4mn^2-2mn+6m^3n$

$.5m+.25=\frac{1}{2}$

$\int\left(8y^7+\:cos\:y\right)dy$

$\frac{\tan\left(x\right)}{\sqrt{4+\left(\tan\left(x\right)\right)^2}}$

$\csc\left(x\right)-1\cdot\csc\left(x\right)+1$

$-38-2\cdot\left\{-5+6\cdot\left(-3+2\cdot7-1\cdot9\right)\right\}-4\cdot3$

$\left(2.1v^3w^2\right)-\left(12.3v^3w^2\right)$