Question about Texas Instruments TI-89 Calculator

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How do i solve for x on my ti-89?

How do i solve a problem like 3/x-2+21/x^2-4=14/x+2 and solve it for x?  I cant figure this thing out.  I also can't figure out how to show something is an inverse or find the formula of an inverse.

Posted by bigbillygoat on

  • Anonymous Dec 29, 2007

    I am trying to solve this for "x"
    s = ±x·(4a2x2 + 1)½ + (1/2a)·ln[2ax ± (4a2x2 + 1)½]
    I used solve(s = ±x·(4a2x2 + 1)½ + (1/2a)·loge[2ax ± (4a2x2 + 1)½],x)
    But does not work

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First to solve a problem, write it like this

solve(3/x-2+21/x^2-4=14/x+2,x)

Second, for inverse, do this (note the "y=" part)

solve(y=3x^2 -2x+1,x)

The calculator will rewrite the formula as x = ...

Posted on Nov 10, 2007

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How do we find the X on the TI -89 Titanium

Posted on Apr 28, 2009

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