$9x^3-7x^2+4x^2-x+4x^3-3x^2$
$12a^2b^2c-5a^2bc^2-12a^3b^2c+3a^2bc^2+4a^3b^2c$
$11x+12^3\:$
$\sqrt{1+\left(-1.16\right)}^3$
$-12a+6b-9.-8b-1$
$e^{-\infty^2}$
$\lim_{x\to\frac{-2}{5}}15x^2-14x-8$
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