Posted by **gio** on Tuesday, September 19, 2006 at 3:26pm.

What is the definition for an EXPRESSION ?

An expression in English can be a short sentence, or a sentence fragment.

Take a hike. Go figure. What's up? Whatever.

In math, an expression is again a fragment, it can be complete or not complete.

2x + 1

Sin^2(2x) + 2

e^(2x + cosTheta)

19+42x + 2.3y

all are expressions. The dictionary defines (math) expression as a group of symbols that make a mathematical statement

My math teacher asked for the weather of dates as they passed so we could make a graph well I need to know some tempertures of the dates I need

Anonymous gave a very good explanation in my opinion.

Generally we separate expressions from equations. For equations we typically want to solve one variable in terms of one or more other variables or constants. For expressions we are typically interested in showing different ways it can be written or simplified. Some textbook writers might use the terms interchangably, but many use them the way explained above.

9+1=

## Answer this Question

## Related Questions

algebra - Let X be a number. Translate the English phrase or sentence into a ...

English Expression - Using each card in Group A and Group B, let's play the "...

English - Native speakers - Hello! Which expression do you use the most in ...

English Expression - Posted by John on Monday, May 19, 2008 at 3:47pm. Using ...

sentence expression - explain mathematical expression for each phrases like 3 ...

Math - The question i'm having a problem with is the following: copy and ...

Math - Write an algebraic expression for each word phrase on the board. Evaluate...

math (this correct) - What is the difference between an equation and an ...

English Expression - ex) Is your father still alive? In this sentence, 'is your...

3rd grade math - write an expression. then write a number sentence and solve. ...