solving a simple equation

asked 2013-03-01 15:13:46 +0100

czsan
237 ●9 ●16 ●26

Is there a method to solve the equation x + x^(1/3) == -2 ?

edit retag flag offensive close merge delete

add a comment

1 Answer

Sort by » oldest newest most voted

answered 2013-03-01 15:43:54 +0100

calc314
4191 ●22 ●48 ●113

Here is a numerical approach. I've not been able to get it symbolically.

show(plot(x+ x/abs(x)* abs(x)^(1/3)+2,(x,-5,5)))
find_root(x+ x/abs(x)* abs(x)^(1/3)+2,-2,-1/2)

edit flag offensive delete link

Comments

Yes, this is right. This equation unsolvable in maple too, because of the third root of negativ numbers. But in Maple there is a surd function, which helps.

czsan ( 2013-03-01 15:55:42 +0100 )edit

add a comment

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Question Tools

Stats

Asked: 2013-03-01 15:13:46 +0100

Seen: 1,048 times

Last updated: Mar 01 '13

solving a simple equation edit