Ask HN:help with algebraic equation

2 pointsby pencilover 14 years ago

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 comments

snissnover 14 years ago

<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>

DoHanderover 14 years ago

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

Muzzaover 14 years ago

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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