$\frac{\left(27x\right)^3-8y^{12}}{3x+2y^3}$

$12x+18y+22\left(15-\left(x+y\right)\right)+17\left(12-x\right)+12\left(12-y\right)+12\left(x+y\right)$

$\int\:\frac{4e^{3x}}{1+e^{2x}}dx$

$\frac{\left(v-w\right)^2-x}{v-w-\sqrt{x}}$

$15a-3ab+4b-20$

$\tan\left(x\right)=\sin\left(x\right)\cdot\cos\left(x\right)$

$y=\arccsi2x$