$\frac{sin\:\left(x\right)}{\cos\left(x\right)}+\left(cos\:x\right)^2$
$-4y-4y+5y^2+3y-6y^2+8y+3y+5$
$m-16=n$
$\int\frac{\sqrt{x}}{x-\sqrt{x}}dx$
$16m^2-1$
$5x+3\left(x+4\right)=28$
$\left(-7\right)+\left(-1\right)+\left(4\right)+\left(-8\right)$
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