I think one of my books mentioned a way of solving third level equations (ax^3 + bx^2 + cx + d) and fourth level equations (Same as before, add nx^4) much the same way as you do with second level equations ((-B +- Sqrt(B^2 - 4AC))/2A). I have two questions, do you guys know the formulas for solving those equations and has it been proven that fifth level equations are unsolvable through a general rule?(adsbygoogle = window.adsbygoogle || []).push({});

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# Solving 3rd and 4th level equations

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