$\log\left(x\right)-\log\left(x-2\right)=\log\left(4x-3\right)-\log\left(3\right)$
$8w\left(a+b\right)+9x\left(a+b\right)$
$cos4\left(x\right)=-\frac{1}{\sqrt{2}}$
$-4\left(2-n\right)$
$\left(9x^2y^2-\frac{1}{5}c^2\right)^2$
$3x-2=5x+16$
$\sec^2\left(a\right)\csc^2\left(a\right)=\sec^2\left(a\right)+\csc^2\left(a\right)$
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