$\sin^4\left(x\right)-cos^4\left(x\right)=\frac{3}{4}$
$20m^2+24mp$
$\left(9x-9\right)\left(9x+9\right)$
$\log_{27}\left(9\right)=3$
$4x+3y\cdot4x-3y$
$\left(-2\right)\left(-2\right)\left(12\right)-\left(13\right)\left(2\right)\left(2\right)$
$3x+12=-6$
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