$4\left(-3\right)^5-4\left(-3\right)^4+10\left(-3\right)^2-\left(-3\right)-6$
$\frac{d}{dx}z$
$12x-3\ge42x+7$
$5.5\cdot4$
$4x^4-36x^2+81$
$11x^7+9x^5-3x^4+5x^2-13x^2+9$
$3x^2\:y^4\:+\:6x\:^3y^3$
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