buddy wrote:Xto 4th power -3X to 3rd power - 40x squared = 0 How do I set this up into a quadratic equation? There are no examples close to this in my book. Do I sub. U forX to 3rd? If can have the set up or a formula for working this I can get it.
I take it that the equation given is
The first thing you should do is see if you can find any common factors in the terms on the left-hand side. What can you factor out of
Once you have the left side factored completely, set each factor equal to zero (separately) and solve for
Since this is a fourth-degree polynomial, you will have at most four solutions.
Good luck!