$\left[-7\right]-\left[+8\right]-\left[-25\right]$
$8^3\left(2\cdot8^2\right)-\left(-5\right)$
$\ln\left(3x+2\right)=\ln\left(5x-6\right)$
$6\left(9+3\right)\left(4+19\right)$
$x^2-5z+25=4$
$\left(8\sqrt{18}x-78\right)^2$
$5x^4y^6z\cdot10x^4yz^8$
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