$-a-2\left(3a+7\right)-10+8\left(2b+12a\right)-2$

$5x-3\ge3x+11$

$c2-6c-27$

$\frac{dy}{dt}=\:\frac{\left(-4\cdot x^3\right)}{\:\left(x^4\:+\:1\right)^2}$

$\frac{\left(x+1\right)}{\left(x-1\right)}+\frac{\left(2x\right)}{\left(x^2-1\right)}$

$\int\left(\sin\left(3x\right)^2\cos\left(3x\right)^2\right)dx$

$-\left(-\frac{250}{2}\right)+\left(-5\right)\:\cdot40-120+375$