$49\left(3\right)$
$4x-7<3x+8$
$5x^2+40x=0$
$\left(4\sqrt{2x+3}\right)^2$
$\left(3b^2+2\right)^2$
$\left(sec\left(-x\right)\right)\left(\cot\left(x\right)\csc\left(x\right)-sin\left(\frac{\pi}{2}-x\right)\right)=cot^2x$
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