$12\left(\frac{3}{4}\right)+31$
$\tan^2x+3=4\sec^2x$
$-6\cdot12^{10x-9}-1=-72$
$log9+log4x^2=4$
$4x^2-4x+40$
$dx=m\left(1+m^2\right)\sec\left(x\right)^2dm$
$\left(xy-20\right)^2$
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