$\left(5w+\frac{1}{2}\right).\left(5w-\frac{1}{2}\right)$
$\frac{3xy+2}{5}+\frac{3xy-1}{2}$
$121d^2-66d+11$
$2+4-6+230-5$
$7x+18=-24$
$\frac{m^5}{m}$
$\sqrt{x+3}+1=4$
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