$62.702\:+94.3$
$2x-3=x+1$
$7m^2-4m^2-11m^2$
$\int_5^9\left(\frac{6x^3-9x}{x^4-81}\right)dx$
$sinx=1-2sin^2\left(\frac{\pi\:}{4}-\frac{x}{2}\right)$
$\left(\frac{4}{9}n^n+u^m\right)^2$
$\left(a+3\right)\left(a+8\right)$
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