What constitutes a rational expression?

What constitutes a rational expression? How would you explain this concept to someone unfamiliar with it?

What constitutes a rational expression?

What constitutes a rational expression? How would you explain this concept to someone unfamiliar with it?

Tutors, sign in to answer this question.

The answers given already are excellent...but I'm just adding...for YOU to answer your question there are two things YOU NEED TO KNOW...so that you understand the content of similar questions.

Do you understand or know what the definitions of an 'expression' and a 'rational number' are? If you know what these definitions mean...you will be able to answer any similar questions. If you don't make sure you do. An expression is 'any numerical symbol or symbols which represents a mathematical value...'

2...1,000.....4x......πr^{2}...1.24x...sometimes it can be confusing when it comes to quantities(or values inside brackets or parentheses...(2x + 5)..... [4x(x^{2} - 7)]...a name for them is that they are binomials(or trinomials or more)but they represent a value... or any symbol like that...make sure you understand that.^{
}

So now...what is a rational number. If you know...then great!!! BUT...if you don't...you would be so much smarter if you know what a rational number/value is...(Hint: look at the word...'ratio'nal number)

Add these two words to your 'ritmetic' vocabulary...and you'll be a genius!!!

Josette R. | English/Grammar TutorEnglish/Grammar Tutor

An expression that is the ratio of two polynomials.

It is "Rational" because one is divided by the other, like a ratio.

James M. | James in Los AngelesJames in Los Angeles

A rational expression is a function made from the ratio of two polynomials.

Mariateresa S. |

A rational expression is any polynomial written as a fraction. Numerator over denominator.

Already have an account? Log in

By signing up, I agree to Wyzant’s terms of use and privacy policy.

Or

To present the tutors that are the best fit for you, we’ll need your ZIP code.

Your Facebook email address is associated with a Wyzant tutor account. Please use a different email address to create a new student account.

Good news! It looks like you already have an account registered with the email address **you provided**.

It looks like this is your first time here. Welcome!

To present the tutors that are the best fit for you, we’ll need your ZIP code.

Please try again, our system had a problem processing your request.

Pnina L.

The Only Tutor You'll Ever Need, effective/organized/creative/patient.

$12.50 per 15 min

View Profile >

Theodore Z.

Let Me Help You Succeed

$12.50 per 15 min

View Profile >

Lisa V.

Patient and Understanding Math, Reading and Test Preparation Tutor

$12 per 15 min

View Profile >