$u^2+u^3-2$
$0.43\cdot3.4+0.57\cdot3.4$
$y=\frac{8x-5}{6x-3}$
$\left(w\right)\left(a^2\right)\left(w^3\right)\left(a^4\right)$
$5x+6=2x$
$3\cdot5^2+3\cdot2$
$1\:-3\:1\:3$
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