David

Hi my name is David..

$f(x)=x^{3}+{\frac {1}{2}}x^{2}+x-5$

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Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://en.wikipedia.org/api/rest_v1/":): {\displaystyle f(x)=x^3+\frac{1}{2}x^2+x-5}