$x=10x^{2}-2$
$\lim_{x\to n}\left(\frac{x^4}{e^x}\right)$
$8x^2+9x+1$
$7x^2+26>x^2+80$
$-1+-11$
$2y^2-y-10$
$\int\sqrt{-34-4x^2+24x}dx$
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