$4x^2-12x+9^7$
$4w^2+12w-44\:\:=0$
$\left(\left(2x+1\right)^2\right)$
$3-1\cdot10+6$
$3x^3-5x^23x+4$
$5+2\left(5x-7\right)+x$
$20+3.8+6.2+5$
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