$\frac{4x^3+12x^2+12x+4}{x^2-2}$
$2a^2-3a^2+4a^2$
$\left(722-\left(938\right)\right)-\left(\left(-284\right)-\left(-273\right)\right)+\left(\left(-173\right)-\left(26\right)\right)$
$-56+38-109+21-387+302+18-45+82$
$\left(3+5\right)+x$
$\frac{4}{sec\left(x\right)+tan\left(x\right)}$
$\left(2y\right)dx=\left(5y+2x\right)dy$
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