$4x^2-m^2$
$x^2+9x+20<0$
$\sin\left(x\right)+\frac{\csc\left(x\right)}{\sec^2\left(x\right)}=\csc\left(x\right)$
$\frac{dy}{dx}\left(\frac{2x^6+11}{x^6}\right)$
$5x^2-x^2+3x+3x^2-5x$
$2sinxcosx=\left(sinx+cosx+1\right)\left(sinx+cosx-1\right)$
$12x^2+28x+15x+35$
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