Question about Texas Instruments TI-89 Calculator

Just plug in one side of the equation and find the answer. Then plug in the other side and compare answers.

Posted on Feb 24, 2008

1. Make sure you are in RAD AUTO mode.

2. Press "F2" and select "solve(" from the drop-down menu

3. Enter the equation that needs to be solved.

Eg. "-(3x+1)-(4x-7)=4-(3x+2)"

4. After the equation, press the "," button and then the "x" button

5. Equation should look like this:

solve(-(3x+1)-(4x-7)=4-(3x+2),x)

6. You should get your answer. Use this format for any equation you wish to solve

Posted on May 24, 2008

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Posted on Jan 02, 2017

You're missing a parentheses.

If you mean e^(ln(177/149)/7)*26 then press

2ND [e^x] ( LN ( 1 7 7 / 1 4 9 ) / 7 ) right-arrow * 2 6 ENTER

if you're in the MATHPRINT mode. In the CLASSIC mode press

2ND [e^x] LN 1 7 7 / 1 4 9 ) / 7 ) * 2 6 ENTER

If you mean e^(ln(177/149)/7)*26 then press

2ND [e^x] ( LN ( 1 7 7 / 1 4 9 ) / 7 ) right-arrow * 2 6 ENTER

if you're in the MATHPRINT mode. In the CLASSIC mode press

2ND [e^x] LN 1 7 7 / 1 4 9 ) / 7 ) * 2 6 ENTER

Sep 15, 2013 | Texas Instruments TI-84 Plus Calculator

This quadratic expression have two zeros, 7 and -1. Than you can write this as **(x-7)(x+1)**

Mar 26, 2013 | Texas Instruments TI-84 Plus Calculator

It is unclear whether your equation is:

a: ((SQRT61) - 7) / 2

or

b: ((SQRT61) / 2) - 7

For a:

Type 61 SQRT.

Subtract 7.

Equals.

Divide by 2.

Equals. (Should be 0.4051248...)

For b:

Type 61 then SQRT.

Then divide by 2.

Equals.

Then subtract 7.

Equals. (Should be -3.094875...)

Good luck.

a: ((SQRT61) - 7) / 2

or

b: ((SQRT61) / 2) - 7

For a:

Type 61 SQRT.

Subtract 7.

Equals.

Divide by 2.

Equals. (Should be 0.4051248...)

For b:

Type 61 then SQRT.

Then divide by 2.

Equals.

Then subtract 7.

Equals. (Should be -3.094875...)

Good luck.

Apr 15, 2011 | Texas Instruments TI-30XA Calculator

7 LOG / ( 6 * 7 LOG - 2 LOG ) =

Mar 30, 2011 | Texas Instruments TI-30XA Calculator

On a TI-30XA the EE key is just above the 7 key.

On a TI-30XIIS the EE is the shifted function of the key just above the 7 key.

On a TI-30XIIS the EE is the shifted function of the key just above the 7 key.

Feb 01, 2011 | Texas Instruments TI 30XIIS Scientific...

You can download the manual from: http://education.ti.com/downloads/guidebooks/graphing/89ti/TI-89_Guidebook_EN.pdf

On page 79, you will find:

Find log (x,b). You can enter "log" on the entry line by typing LOG on the keyboard, or by pressing the key with the diamond and then 7.

Press [diamond] 7 X , [alpha] b ) [ENTER]

On page 79, you will find:

Find log (x,b). You can enter "log" on the entry line by typing LOG on the keyboard, or by pressing the key with the diamond and then 7.

Press [diamond] 7 X , [alpha] b ) [ENTER]

Nov 11, 2010 | Texas Instruments TI-89 Calculator

Potentially, the batteries are very weak, and you might just need to change them out (4 AAA's). More likely, I think there is something defective with such a calculator. Depending upon how long ago you purchased it, it is possible of getting it replaced. The following is Texas Instruments service rep contact info from there website (as of: June 17th, 2010).

TI-Cares Customer Support Contact a TI-Cares Customer Support representative via e-mail or phone to order products, inquire about issues, or ask general questions about TI education technology.

**1-800-TI-CARES (800-842-2737)**

Monday - Thursday: 8 a.m. - 7 p.m. Central Time

Friday: 10 a.m. - 7 p.m. Central Time Contact TI-Cares Support

TI-Cares Customer Support Contact a TI-Cares Customer Support representative via e-mail or phone to order products, inquire about issues, or ask general questions about TI education technology.

Monday - Thursday: 8 a.m. - 7 p.m. Central Time

Friday: 10 a.m. - 7 p.m. Central Time Contact TI-Cares Support

Jun 17, 2010 | Texas Instruments TI-84 Plus Calculator

Pressing ( 7 / 8 ) + ( +<>- 2 / 7 ) = will produce the answer on the TI-30XA.

+<>- is the key to the right of the decimal point.

+<>- is the key to the right of the decimal point.

Apr 13, 2010 | Texas Instruments TI-30XA Calculator

The comma key on the TI 84 SE is above the 7 key, and it is just left of (, right of x squared, and below SIN. thats where the "," key is. If you're asking something else, please clearify. My understanding is that you don't know where the comma key is.

Mar 16, 2009 | Texas Instruments TI-84 Plus Silver...

The comma is located on top of number 7 key.

See page 5 on teh user manual to learn how to operate the keyboard on a TI 84 Plus:

*TI*-*84* Plus *TI*-*84* Plus Silver Edition Guidebook

See page 5 on teh user manual to learn how to operate the keyboard on a TI 84 Plus:

Mar 16, 2009 | Texas Instruments TI-84 Plus Silver...

May 21, 2014 | Texas Instruments TI-89 Calculator

Feb 17, 2014 | Texas Instruments TI-89 Calculator

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