$\frac{x+3}{x^2-5x-24}$
$2-1^2-3-1+4$
$x^2+8x+7=0$
$-12-\left(-44\right)$
$\frac{x+5}{3}+\frac{x-7}{4}<7$
$( x ^ { 2 } + 5 ) ^ { 4 }$
$\int_1^{\pi}\left(cos2x\right)dx$
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