$\frac{2x^4+6x^3-42x-40}{2x^2-4x-6}$
$-2+2+-1+8$
$f\left(x\right)=\frac{-1}{\left(1-x\right)\left(x+1\right)}$
$\int\:\:6t^2sin\:2tdt$
$7\left(9p+8\right)$
$1x^2+1x+10$
$\left(289\right)+\left(-250\right)-\left(-160\right)-\left(-280\right)-\left(-300\right)-\left(-120\right)$
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