$3x^2+2x-85$
$5a\:+\:35+2a+8\:$
$7-9\cdot2+2\cdot4$
$\frac{x^3-8x-5}{x}+3$
$\left|4\right|-\left|3\right|$
$2x+4y-4y+7x$
$165^2+16b+4$
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