$24=3b-b$
$\frac{4x^4+2}{2x^2+1}$
$18x^3+270x^2+10x+150$
$x^2+14x+14^2$
$\left(x^2-8x+17\right)>0$
$\left(5^6\right)^9$
$\frac{\csc\left(x\right)^2-1}{\cos\left(x\right)^2}=1-\sin\left(x\right)^2$
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