$\int\:\frac{4x-5}{x^2-1}dx$
$2x^3-4x^2+5=3$
$2am-2ab+4bc$
$-5.9282\sin\left(105\right)$
$2^2\cdot3^3$
$x-6=x^2-16x+64$
$( x - \sqrt { 2 } ) ^ { 2 }$
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