Editing Polynomial
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[[[> Quadratic equations and cubic equations _ are examples of polynomials. ]]] A polynomial in $x$ is of the form: * $p(x)=ax^n+bx^{n-1}+cx^{n-2}+...+px+q,$ where $a\ne0$ The Fundamental Theorem of Algebra says that solving $p(x)=0$ will give $n$ roots, some (or all) of which might be complex (see complex number), although some may be repeated roots. For example, $x^2-2x+1=0$ has two roots, but both are equal to 1. ---- See also Roots of Polynomials