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$4x^2-8x+10\:=\:0$
$\:\left(2x\:+\:\frac{2}{5}\right)\:\left(\:2x\:-\frac{2}{5}\right)$
$\left(8m^5-5n^6\right)^3$
$x+15=51$
$3x\left(2a+b\right)-2y\left(2a+b\right)$
$si\:x=3$
$10x-x^5+x^4y$
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