$a.\:x^2+6x^1+9x^0$
$x^3+2x\cdot x^3+2x$
$10y^2+23y+12$
$23,09+523,6+3$
$32a^2+26z+8az\:+\:12a+48z^2\:+\:12a^2$
$\left(9a^3b^3-2\right)^2$
$93.895-77,79$
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