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.

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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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Posted on Jan 02, 2017

You have to type:

**deSolve(x''+7x'+12x=4/k and x(0)=0 and x'(0)=4/k,t,x)**

Then enter. See captured image below

Jan 04, 2013 | Texas Instruments TI-Nspire CAS with...

It seems like you're just starting off. And....

....The best thing you can do is begin hacking away at different buttons until you figure out what certain things do. I guarantee, that you will discover some pretty amazing things within the TI-84.

Compared to other calculators, the TI-84 is pretty user-friendly. Don't be scared.

In my opinion, Texas Instruments' customer service is one of the best in the nation. Call them for specific questions, they're great at the basics but not-so hot at the advanced. Friendly & helpful people, though.

....The best thing you can do is begin hacking away at different buttons until you figure out what certain things do. I guarantee, that you will discover some pretty amazing things within the TI-84.

Compared to other calculators, the TI-84 is pretty user-friendly. Don't be scared.

In my opinion, Texas Instruments' customer service is one of the best in the nation. Call them for specific questions, they're great at the basics but not-so hot at the advanced. Friendly & helpful people, though.

Mar 05, 2011 | Texas Instruments TI-84 Plus Silver...

Having gone five months without a response, I assume the suggested contrast adjustment solved the problem.

Oct 21, 2010 | Texas Instruments TI-83 Plus Calculator

type as you see it

May 08, 2010 | Texas Instruments TI-86 Calculator

Instead of just hitting enter try pushing the diamond key and enter, for the approximation function? Just a thought.

Jun 09, 2009 | Texas Instruments TI-89 Calculator

cant solve simple problems

Apr 21, 2009 | Texas Instruments TI-30 XIIS Calculator

Here's how in 4 easy steps (I substituted "A" for "X", my more favorite variable.):

1.) Set calculator to "Degree"

2.) Given-- (cos( X))

3.) Given--(4.37/7.25)==> (437/725)

4.) Add--(cos( X)+ (437/725)

1.) Set calculator to "Degree"

2.) Given-- (cos( X))

3.) Given--(4.37/7.25)==> (437/725)

4.) Add--(cos( X)+ (437/725)

Apr 15, 2009 | Texas Instruments TI-83 Plus Calculator

hey i CAN help u guys just buy a lot of things for your hospital and waaa laaa its solved!!!!!!!!!!!!!!!!!

Jan 02, 2009 | Ubi Soft Entertainment Imagine: Animal...

Depends on what the black screen is caused by. If you review others on this site some have come up with a methods of keep hitting the 2nd key and left arrow key repeatly w/ success. Just depends. Some had problems because of 3rd party downloads and had to reset and reinstall to clear things up. Some had to connect to the computer and use ti connect device explorer to delete and reinstall even the os software. I guess it just depends on how far you make it to solving the problem. I had them that I couldn't fix or figure out.

Aug 26, 2008 | Texas Instruments TI-83 Plus Calculator

Use ti notefolio creator software. It works w/ word and will tranfer to the calculator

Dec 03, 2007 | Texas Instruments TI-83 Plus Calculator

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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×