# What exactly is a math expression

## definition

### Term - definition

If numbers, arithmetic symbols, brackets and variables appear in mathematical expressions and these are also meaningfully linked, these expressions are called **Terms** designated.

**variable**= Unknown = placeholder for a specific number.

**Examples of terms**

**No terms** (because meaningless arithmetic expressions):

**term**mathematicians understand you

**meaningful expression**containing digits, variables, arithmetic symbols and brackets.

e.g .:

### Terms

If there is a number in front of a variable, this is called **Pre-number or coefficient** designated. This can be any rational number, for example: , , , ...

Instead of a 1, often only the variable itself is written, e.g .:

**coefficient**denotes the number that is in front of a variable.

E.g. the coefficient of 8x² is 8

### Term types

According to the number of terms in a term, one differentiates:

**Monomials**= single term terms

**Binomials**= two-part terms

**Trinome**= tripartite terms

**Polynomials**= multiple terms

- Comment # 415 by alina 05/23/11 6:59 PM

alina helped me a lot

- Comment # 7446 from Miriam 02/10/2013 09:00

Miriam Unfortunately that didn't help me, but I urgently need a solution for my problem please help me otherwise I can't do my maths school work well please!

- Comment # 7840 by JohnnyBoy 7/4/13 9:44 PM

JohnnyBoy At first it didn't help so well but then it worked ...

So I could also do my HA's :-)- Comment # 8080 from mery 10/4/13 9:45 AM

mery Although the article is informative, it does not explain the rules to be followed when simplifying terms. The rules of sorting apply and then there are the signs, etc.

- Comment # 10578 by nobody 10/08/2015 7:33 PM

nobody Page did not contain the information I was looking for.

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