Hello, I am in college and I am having trouble with Rational Expressions

you have a code that is not documented, phone their service department. It is probably just advising there has been a power outage.

https://www.techtownforum.com/2020/02/20/rational-scc-service-codes/

From Rational

Training manual Trouble Shooting

https://portal.rational-online.com > englisch_1 > T...
PDF
CM shows error code E12; cabinet temp. display shows 1 CO: Bus problem bottom motor. 2 ST and 2 CO refer to the upper motor. SCC shows Service 34.2.

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  Operating instructions SelfCooking Center® - Rational

  https://www.rational-online.com > en-xx > manuals
  PDF
  The status of the preheating temperature is displayed in red and blue. The end of a cooking process is indicated by the flashing Self-. Cooking Control® button.

First, I'm not a Rational representative.
* This is a Pro oven. Check your warranty. Call your vendor for support.
* Technical support; Tel. 866-891-3528
* Cooking support; Tel; 866-306-2433
* Info; https://www.rational-online.com/portalcontent/club/fs4c/media/files/scc_since_09_2016/brochures/cmp/80.21.517_USA_CombiMaster_Plus_Letter_WA54~1.pdf
* Manual (check page 104);https://www.rational-online.com/portalcontent/club/fs4c/media/files/scc_since_09_2016/handbuecher/manual_cmp/80.02.382_Bedienungsanleitung_CMP_en_uk.pdf


Aloha, ukeboy57

Recall that y^2-16=(y+8)*(y-8). That is the common denominator of the three rational expressions .

A rational expression is a ratio of two polynomial expressions.
Example R(x)=P(x)/Q(x) where P(x) and Q(x) are polynomials of the indeterminate x.

The ratio of two polynomial expressions. But before getting this, you need to know what constitutes a polynomial (expression).
In a polynomial is some indeterminate x, you can only have positive integer powers of x, such as x^0=1, x, x^2, x^n (n restricted to be a positive integer).

All calculators can calculate the sum of two numerical expressions (no letter symbols).
To be able to declare that this calculator can add two rational expressions ( with letter symbols or not) and displays them as a rational expression (result) I would need to know the EXACT Model.

hi ihave a bosch dishwaser that has been stood for a while its working going through the programs ok but its not washing pots properly any ideas please

Hello,
You must first eliminate the denominators by reducing the different expressions to the same denominators. Use the distributivity property of multiplication to expand your terms. Gather similar monomials. Do all the cleaning to reduce your equation to one of the 2 types that the calculator can handle.[Mode][5:EQN] [3: ax2+bx+c] or [4:ax3+bx2+cx+d]

Remember :Any solution that makes one of the original denominators equal 0 must be rejected.

Hope it helps.

Absolutely.