$-4x^2y^2+2x^2-5y^2+7=0$
$x^2+7x+3.5$
$-5\cdot\left(-1\right)+\frac{\left(-3^3\right)}{9}$
$15a-12a=15$
$\frac{d^{15}}{dx^{15}}\left(\sin\left(3x\right)+\cos\left(x\right)\right)$
$\left(x-5^4\right)$
$\left(m\:-\:11\right)\:\left(m\:-\:12\right)$
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