**(I) Algebraic Expressions vs Equations**

The following are

**expressions**

**3***x***5 - 2***y**p*+ 2*q*- 45**mn**

**equations**:

**2***x*= 4*x*+ 8 = 20*x*² = 36**2***x*+*y*= 4

*Can you tell the difference between an expression and an equation?***(II) Coefficients, Variables and Constants**

In the following algebraic expressions:

(a) 6

*x*

*x*is a variable- 6 is the coefficient of
*x* - There is no constant

*y*+ 5

*y*is a variable- 2 is the coefficient of
*y* - 5 is the constant

*m*+ 7

*n*+ 9

*m*and*n*are variables- 3 and 7 are coefficients of
*m*and*n*respectively - 9 is the constant

*p*+ 2

*q*- 45

*p*and*q*are variables- 1 and 2 are coefficients of
*p*and*q*respectively - -45 is the constant

*a -*3

*b +*1

*a*and*b*are variables- 5 and -3 are coefficients of
*a*and*b*respectively - 1 is the constant

*x*-

*y*

*x*and*y*are variables- 1 and -1 are coefficients of
*x*and*y*respectively - There is no constant

**When given an expression, are you able to pick out the variable(s), coefficient(s) and constant terms?**

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Can you tell the difference between an expression and an equation?

ReplyDeleteAn equation has a balance on one side of the equation to show the value of the variable.

When given an expression, are you able to pick out the variable(s), coefficient(s) and constant terms?

Yes

Can you tell the difference between an expression and an equation?

ReplyDeleteAn equation has a value on one side of it that shows the value of that variable, while a expression doesn't.

When given an expression, are you able to pick out the variable(s), coefficient(s) and constant terms?

Yes.

Can you tell the difference between an expression and an equation?

ReplyDeleteAn expression is a combinations of symbols formed according to a rule and hold a certain value. While an equation is a mathematical statement which has two expression that are equal or an expression and a number that is equal.

When given an expression, are you able to pick out the variable(s), coefficient(s) and constant terms?

Yes.

Can you tell the difference between an expression and an equation?

When given an expression, are you able to pick out the variable(s), coefficient(s) and constant terms?

ReplyDeleteAn expression shows a mathematical relationship, and does not require any solution

An equation, however, equates two different expressions.

Yes.

1) Equations compare two numbers to show their relationship while expressions are just a value

ReplyDelete2) Yes

1)equations show the relationship of two numbers and does not need solutions while for expressions there is a need for the solution to the problem

ReplyDelete2)Yes

-Bowen-

1) Expressions do not have an equals sign and shows the relationship between two terms to show their relationship while equations have an equals sign and the objective is to calculate it for an answer.

ReplyDelete2) Yes.

EXPRESSION:

ReplyDeleteAn expression is a PHRASE,

a sentence fragment.

One simplifies an expression.

An expression HAS NO relation symbol.

Example.

a number less than five

x

five less than a number

x - 5

EQUATION:

An equation is a SENTENCE.

One solves an equation.

An equation HAS a relation symbol.

Example.

Ten is five less than a number.

10 = x - 5

A number is less than five.

x < 5

Source:http://www.mathnstuff.com/math/algebra/aequex.htm

The Question: When given an expression, are you able to pick out the variable(s), coefficient(s) and constant terms?

ReplyDeleteAns: YES! :)