How to quickly solve a quadratic equation

02182016, 02:19 AM
Post: #6




RE: How to quickly solve a quadratic equation
Didier, what's the easiest way to enter those values? Do I create a matrix? I've tried using the [[]] template and deleting a set of brackets but it just returns an empty set of brackets. Also is the equation in the the form x^4 +2x^3 25x^2 26x +120=0?Finally, do you know of a way to quickly select the proot() command without searching through that entire list of commands in the toolbox catalog?
Tim, can you give me an example of how I would do what you suggested? If I wanted to find the roots for the above equation, how would I input it inside the parenthesis? Sorry for the barrage of questions but my math knowledge is probably lacking compared to you guys and this is my first graphing calculator since a TI83 in high school over 10 years ago. 

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