$2\:x\:+\:1\:>\:7$
$\frac{csc\left(-x\right)}{cot\left(-x\right)+tan\left(-x\right)}$
$\ln\left(x-4\right)=\ln\left(x+6\right)-\ln\left(x\right)$
$x^4-4\le0$
$x^4y^6-81$
$\left(x^2+2x^3-x^2+3x+1\right)\left(2x\right)$
$\int\left(\frac{\left(log2x\right)}{x^2}\right)dx$
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