$\int\frac{2a+x}{4}dx$
$2\cdot1024$
$44rst+40r+7r+3r-50r$
$\left(\frac{7d^5}{3}+\frac{3}{8}\right)^2$
$x^2+27x+81$
$\frac{x\cdot\cot^2\left(x\right)}{1-\sin\left(x\right)}$
$b^3+ab+a+ab$
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