$4-4x+4^2$
$-4x-1x-8$
$p\left(x\right)=x^2-7+10\:$
$7c-7c$
$\frac{40}{5}+\frac{10}{5}-\frac{5}{5}$
$\left(-12+5+11\right)\cdot\left(-6-2\right)$
$\frac{\tan\left(x\right)-\sin\left(x\right)}{\left(\csc\left(x\right)\infty\right)\cdot\cos\left(x\right)^2}$
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