$2x^2+4x-7$
$\left(14x\right)\left(2x^2\right)$
$5nu^8-18nu^7+9nu^6$
$2^{x+1}+\left(5\right)\left(2^x\right)=28$
$\frac{1}{\left(2x^3+4x^2\right)^3}$
$\left\{5a-12b\right\}^2$
$\sec^2180=\frac{1}{\sin\left(x\right)^2\cdot\cos\left(x\right)^2}$
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