Solve y^4+4y-69 for y

justin345

1. The problem statement, all variables and given/known data

I have been solving a problem, which turned into this equation. Obviously it is not a quadratic equation. I am a little bit confused how to solve this one?

2. Relevant equations

3. The attempt at a solution

Mark44

It's not even an equation, so you can't solve for y. If the equation is y⁴ + 4y - 69 = 0, about the best you can do is get an approximate solution using a technique such as Newton's Method.

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justin345	Solve y^4+4y-69 for y Tweet 1. The problem statement, all variables and given/known data I have been solving a problem, which turned into this equation. Obviously it is not a quadratic equation. I am a little bit confused how to solve this one? 2. Relevant equations 3. The attempt at a solution

Mark44 Mentor	It's not even an equation, so you can't solve for y. If the equation is y⁴ + 4y - 69 = 0, about the best you can do is get an approximate solution using a technique such as Newton's Method.