$5x^2-9x-2=0$
$9\left(-7-2x\right)-2x$
$y\left(k+2\right)+2y\left(k+1\right)+4y\left(k\right)=0$
$8q^3+64$
$\int\sqrt[3]{x}ln\left(2x\right)dx$
$-x^2-4x+5>0$
$\frac{x^2-14x+50}{x^2-8}$
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