$-x+7\ge2x-5$
$xy^'-y=y^3$
$\left(3p+4q\right)^3$
$x^2=2x+9$
$x^2+8x+4$
$\frac{5}{4}\left(\frac{3}{2}x^2+\frac{5}{78}x^3\right)$
$\frac{sinx}{cscx+cotx}=1-cosx$
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