$\frac{-30}{-10}$
$9\sin\left(x\right)+\sqrt{11}=0$
$7-3.\left(-4\right)-\frac{27}{\left(-9\right)}$
$\frac{14x^2}{x^2}$
$\left(5h+3k\right)^2\:$
$27^x=9^{x-2}$
$3x^2+3x-18$
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