How can I solve a non-quadratic equation with the form y^4+4y-69=0?

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SUMMARY

The equation y4 + 4y - 69 = 0 is a non-quadratic polynomial equation. To find approximate solutions for this equation, the most effective method discussed is Newton's Method, which is a numerical technique for finding roots of real-valued functions. The discussion emphasizes that traditional algebraic methods are not applicable for solving this equation directly.

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Homework Statement



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?

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The Attempt at a Solution

 
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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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