Question about Casio FX-115ES Scientific Calculator

Here is an example problem:

3x^2+6x^2+2x+4

How would I enter that into my Casio fx-115es calculator in order to factor it out?

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Unless I am failing to understand your problem, just combine like terms to get:

9x^2+2x+4 and then enter those coefficients into the quadratic solver.

That will get you the two answers -- both of them will be complex.

If you wanted to turn those two answers into factors (complex) of the original equation simply

change the signs on each and put an x in front.

Of course, the quadratic formula would also work.

CG

Posted on Apr 28, 2009

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.05 x .05=

I keep getting 2.5x10-3 yes this is the answer but how do I get the calculator to show .0025

Posted on Jul 14, 2009

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How do i enter x^1/3=-2 into casio fx 115 es

Posted on Mar 16, 2010

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Posted on Jan 02, 2017

Press [MODE][3][2]. In first column enter known x-coordinates (1 and 5), in second known y-coordinates (2 and 6). The solution you are looking for is in form Y=A+B*X where X=3. Your calculator computes A and B after you enter data. To calculate Y (which is equal to A+B*3 press [SHIFT][1][7][1][+][SHIFT][1][7][2][*][3][=]. The result should be 4.

If I helped you, please rate my answer :)

If I helped you, please rate my answer :)

Sep 07, 2011 | Casio FX-115ES Scientific Calculator

Sorry the calculator is unable to perform symbolic algebra calculations. Fortunately for you there is no need for the calculator. Use the special product (idemtity) (a-b)(a+b)=a^2-b^2 with a=2X and b=10

Aug 07, 2011 | Casio FX-115ES Scientific Calculator

In algebra x represents something. It is a place holder for some value. Now let that value be the word** orange** or some other word you prefer.

Read out loud the mathematical phrase :3 oranges minus 2 oranges

Complete the sentence as you used to do in grade school: 3 oranges take away 2 ( minus) 2 oranges leaves 1 orange.

Translate that sentence into mathematics : 3 oranges - 2 oranges = 1 orange.

Since this operation is true for oranges, pears, pencils, what have you, use the symbol x as a place holder for oranges, pears, pencils, what have you and write the universal truth which is

3x-2x=1x.

Make it more sophisticated by remembering that if a factor before a variable has value 1, you can just drop it. That leaves 3x=2x=x.

By the way, your calculator is just a scientific calculator without a Computer Algebra System and cannot make sense of symbols that have no values. So it cannot do it.

Read out loud the mathematical phrase :3 oranges minus 2 oranges

Complete the sentence as you used to do in grade school: 3 oranges take away 2 ( minus) 2 oranges leaves 1 orange.

Translate that sentence into mathematics : 3 oranges - 2 oranges = 1 orange.

Since this operation is true for oranges, pears, pencils, what have you, use the symbol x as a place holder for oranges, pears, pencils, what have you and write the universal truth which is

3x-2x=1x.

Make it more sophisticated by remembering that if a factor before a variable has value 1, you can just drop it. That leaves 3x=2x=x.

By the way, your calculator is just a scientific calculator without a Computer Algebra System and cannot make sense of symbols that have no values. So it cannot do it.

Jul 30, 2011 | Casio FX-115ES Scientific Calculator

Press MODE 5 to bring up the equation types. Press 3 for the quadratic. Enter the three coefficients. Press = to see the first root. If the display shows x1 then press down to see the other other root. If the display only shows x then that's a double root. Given the two roots x1 and x2, the factors of the quadratic are (x-x1) and (x-x2).

Refer to "Equation Calculations" on page E-55 of the manual and examples #094 and #095 in the appendix for examples of solving quadratic equations. If the you need the manual and/or appendix, you can download them from

http://support.casio.com/manualfile.php?rgn=1&cid=004001004

Refer to "Equation Calculations" on page E-55 of the manual and examples #094 and #095 in the appendix for examples of solving quadratic equations. If the you need the manual and/or appendix, you can download them from

http://support.casio.com/manualfile.php?rgn=1&cid=004001004

May 11, 2011 | Casio FX-115ES Scientific Calculator

The fx-115ES does not have a modulo operator. However, it is possible to compute the remainder using integer arithmetic. Press MODE 4 to shift into integer mode. Then calculate A modulo B as

A - B * (A / B). For example, to calculate 41 modulo 6, press

4 1 - 6 * ( 4 1 / 6 ) =

and get 5.

Press MODE 1 to return to real arithmetic.

A - B * (A / B). For example, to calculate 41 modulo 6, press

4 1 - 6 * ( 4 1 / 6 ) =

and get 5.

Press MODE 1 to return to real arithmetic.

Feb 07, 2011 | Casio FX-115ES Scientific Calculator

The Casio FX-115ES does not have a Computer Algebra System (or CAS), so it is incapable of factoring polynomials.

As to simplifications, the only ones that you can get with the FX-115ES are the display of fractions in their irreducible forms.

Sorry.

As to simplifications, the only ones that you can get with the FX-115ES are the display of fractions in their irreducible forms.

Sorry.

Aug 16, 2010 | Casio FX-115ES Scientific Calculator

support.**casio**.com/pdf/004/**fx**-**115ES**_991ES_Eng.pdf -

It is all explained in the above manual.

It is all explained in the above manual.

May 09, 2010 | Casio FX-115ES Scientific Calculator

Use the other = sign obtained by pressing [ALPHA][CALC]. You also use the[ALPHA] key before entering X,Y,A,B,C.D variables.

The = sign at the bottom that gave you syntax errors is in fact an EXECUTE command. It used to be marked [EXE] on Casio calculators

The = sign at the bottom that gave you syntax errors is in fact an EXECUTE command. It used to be marked [EXE] on Casio calculators

Mar 04, 2010 | Casio FX-115ES Scientific Calculator

hello,

The calculator will calculate the derivative at a point. It will not give you the formula for the derivative, just the derivative at the point you choose.

Sorry, it can ONLY do NUMERICAL differentiations and integrations.

The calculator will calculate the derivative at a point. It will not give you the formula for the derivative, just the derivative at the point you choose.

Sorry, it can ONLY do NUMERICAL differentiations and integrations.

Oct 21, 2009 | Casio FX-115ES Scientific Calculator

Just use parentheses for all brackets

Jun 25, 2009 | Casio FX-115ES Scientific Calculator

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