$\lim_{x\to2}\left(x+4\right)\sqrt{2x+5}$
$\frac { ( 1 + x ) ^ { 2 } - 1 } { x }$
$\frac{sin}{csc}$
$6x\ge24$
$\lim_{x\to-1}\left(\frac{x^2-2x-3}{x^2+4x+3}\right)$
$\left(20\cdot x\right)^2$
$\left(x+t\right).\left(x-7\right)$
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