$\lim_{n\to\infty}\left(\sqrt[n]{4^n+7^n}\right)$
$x^4+x^3+x^2+x$
$-16\left(2\right)^2$
$x^{sqrt\left(7t\right)}$
$\frac{dy}{dx}y^2+5-4x+9x^2=0$
$-1\left(2a-3b\right)^2$
$-9x-35=10$
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