Tredjegradsligning: Forskelle mellem versioner

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{{Formatering}}
[[Billede:Polynomialdeg3.png|thumb|right|200px|''y''&nbsp;=&nbsp;''x''<sup>3</sup>/4&nbsp;+&nbsp;3''x''<sup>2</sup>/4&nbsp;&minus;&nbsp;3''x''/2&nbsp;&minus;&nbsp;2<br> =&nbsp;(1/4)(''x''&nbsp;+&nbsp;4)(''x''&nbsp;+&nbsp;1)(''x''&nbsp;&minus;&nbsp;2)]]