$\left(4xy+5m\right)^2$
$\left(7x^4-9y^3\:\right)^2$
$x=4s+2t$
$6\left(1+2k\right)$
$y^'=\:y-y^2$
$\left(l-r-lo\right)^2$
$8.6+.09$
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