$x^2+7x+x$
$14x^2n^5+7xn^3$
$\sqrt[6]{\left(\frac{9x^3y^3}{3xy}\right)}\sqrt{\frac{25x^2}{y^2}}$
$4^c=64$
$sin^2x-sinx-2=0$
$2-x<-6$
$2\left(3x+3\left(10y+3x\right)\right)$
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