$3\left(3x^2-2x'\right)$
$x^2+9x+10=0$
$\frac{h^5+32}{h+2}$
$5\left(x^2+2x\right)$
$2\cdot4096$
$\sec b\cot b\sin b=1$
$c^2-6c+9$
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