how do u find the inverse of the function f(x)=x^2+2x-1=0?
stapel Super Moderator Staff member Joined Feb 4, 2004 Messages 16,583 Sep 5, 2005 #2 Are you finding the inverse of f(x), or solving x<sup>2</sup> + 2x - 1 = 0? Eliz.
stapel Super Moderator Staff member Joined Feb 4, 2004 Messages 16,583 Sep 5, 2005 #4 Okay, yes, you are doing one or the other. Ha, ha. Now please specify which. Eliz.
G Gene Senior Member Joined Oct 8, 2003 Messages 1,904 Sep 5, 2005 #6 f(x)=y=x²+2x-1 Swap x and y to get x=y²+2y-1 Then solve that for y
