$x+12x-36$
$\frac{10^5}{10^3}$
$x ^ { 2 } - 17 x + 30$
$4x-25;x=10$
$x^2^a-y^2^b$
$\left(x\:+\:3\right).\left(x\:+\:2\right)\:>\:x.\left(x\:+\:1\right)\:+\:22$
$-3\cdot12\cdot7$
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