Ask HN:help with algebraic equation

2 点作者 pencil超过 14 年前

any idea on how to solve this equation 2x(4-x)^(-1/2) - (4-x)^1/3 = 0..i could somehow simplify and reach 2x-(4-x)^5/6 = 0.now i don't know what to do

3 条评论

snissn超过 14 年前

<a href="http://www.wolframalpha.com/input/?i=2x(4-x)^(-1/2)+-+(4-x)^1/3+%3D+0" rel="nofollow">http://www.wolframalpha.com/input/?i=2x(4-x)^(-1/2)+-+(4-x)^...</a>

DoHander超过 14 年前

Since this is a nonlinear equation, I would try to solve it numerically. I don't see much interest in solving this analytically.

Muzza超过 14 年前

Move one term over to the other side, raise both sides to the power of 6, then multiply by (4 - x)^3. You now have an equation of the fifth degree...

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