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  "body": "\n## Summary\n\nQuartic function In mathematics, a **quadratic function** of a single variable is a [[function|0EPAT51DXQ]] of the form\n\n$$f(x)=ax^2+bx+c$$\n\nwith $a \\ne 0$, where $x$ is its variable, and $a$, $b$, and $c$ are coefficients. The expression $\\textstyle ax^2+bx+c$, especially when treated as an object in itself rather than as a function, is a **quadratic polynomial**, a polynomial of degree two. In elementary mathematics a polynomial and its associated polynomial function are rarely distinguished and the terms *quadratic function* and *quadratic polynomial* are nearly synonymous and often abbreviated as *quadratic*.\n",
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