How to Solve a Quartic

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Solving a quartic will involve a great deal of simplification. Solve a quartic with help from an expert in computers, with two degrees in both Computer Science and Applied Mathematics from the New Jersey Institute of Technology, in this free video clip.

Part of the Video Series: Math Skills
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Hi, my name is Stefan. Today, I'm going to be speaking on how to solve a quartic. Let's say for example we have the equation X to the 4th plus 13X squared plus 36 equals 0. We can let X squared equal W so we get W squared plus 13W plus 36 equals 0 and now we can use our quadratic formula to solve this equation and we get W equals 9 and 4 and since X squared equals W, we know that X is going to equal the square root of this which is negative 3 and 3 and the square root of that 4 which is negative 2 and 2. And that's how you solve a quartic.

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