$0<4x-6$
$7\cdot7^{-4}\cdot7^{-1}$
$3,9+4,5+5+4$
$\left(-1\right)^3-2\left(-1\right)^2+\left(-1\right)-9$
$a^2c\sqrt{108a^5}b^2c^3$
$\left(-7\right)\cdot\left(+11\right)$
$-3x^2+8x-10=30$
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