document.write( "Question 9258: Click on the link to solve this problem:
\n" ); document.write( "I'm doing the review section in my calculus class, but it's been over two years since i took any math...\r
\n" ); document.write( "\n" ); document.write( "The problem is to find the inverse of an equation, input a given number and solve. However, the review section on inverse only give simple equations, the ones in the homework are more complex..\r
\n" ); document.write( "\n" ); document.write( "find the inverse of:
\n" ); document.write( "\"f%28x%29=x%5E3%2B2x-1\"\r
\n" ); document.write( "\n" ); document.write( "So I made f(x) into \"y\" and I exhanged it with x so it now looks like
\n" ); document.write( "\"x=y%5E3%2B2y-1\"\r
\n" ); document.write( "\n" ); document.write( "I start solving for y
\n" ); document.write( "\"x%2B1=y%5E3%2B2y\"\r
\n" ); document.write( "\n" ); document.write( "This is where I start to get stuck I've factored, but it still leaves a y\r
\n" ); document.write( "\n" ); document.write( "\"x%2B1=y%28y%5E2%2B2%29\"\r
\n" ); document.write( "\n" ); document.write( "or\r
\n" ); document.write( "\n" ); document.write( "I've tried to cube root it, but then I still have a y under the radican\r
\n" ); document.write( "\n" ); document.write( "\"x%2B1%5E%281%2F3%29=%28y%5E3%2B2y-1%29%5E%281%2F3%29\"\r
\n" ); document.write( "\n" ); document.write( "I'm stuck..\r
\n" ); document.write( "\n" ); document.write( "help please, \r
\n" ); document.write( "\n" ); document.write( "thank you
\n" ); document.write( "

Algebra.Com's Answer #4971 by ichudov(507)\"\" \"About 
You can put this solution on YOUR website!
The hard core way of using this would be to simply use the formula for roots of a cubic equation. Check out this article and follow the formula. It becomes easier if the square component is missing, as it is in your case. I cannot see any easier solution. I wonder if you misinterpret the question that was asked. What was the text of the question exactly? \n" ); document.write( "
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