# what is a rational expression definition

## what is a rational expression definition

Definitions: A rational expression is the ratio of two polynomials. If f is a rational expression then f can be written in the form p/q where p and q are polynomials. ## How do you identify rational algebraic expressions?

Rational expressions are fractions containing polynomials. They can be simplified much like numeric fractions. To simplify a rational expression, first determine common factors of the numerator and denominator, and then remove them by rewriting them as expressions equal to 1.

## What is an algebraic expression simple definition?

Definition of algebraic expression : an expression obtained by a finite number of the fundamental operations of algebra upon symbols representing numbers.

## What is a rational algebraic expression is an expression of the form?

A rational expression is an algebraic expression of the form P/Q, where P and Q are simpler expressions (usually polynomials), and the denominator Q is not zero.

## What is a rational algebraic expression definition?

A rational algebraic expression (or rational expression) is an algebraic expression that can be written as a quotient of polynomials, such as x2 + 4x + 4. An irrational algebraic expression is one that is not rational, such as √x + 4.

## How can you determine if the rational is an equation or expression?

A rational equation is an equation containing at least one fraction whose numerator and denominator are polynomials, \frac{P(x)}{Q(x)}. Q(x)P(x). These fractions may be on one or both sides of the equation.

## What is not a rational expression?

A rational algebraic expression (or rational expression) is an algebraic expression that can be written as a quotient of polynomials, such as x2 + 4x + 4. An irrational algebraic expression is one that is not rational, such as √x + 4.

## How do you know if it’s not a rational expression?

Rational expressions are fractions that have a polynomial in the numerator, denominator, or both. Although rational expressions can seem complicated because …

## How do you identify a rational expression?

Rational expressions are fractions that have a polynomial in the numerator, denominator, or both.

## Why do you think it is called rational expression?

Rational expressions are fractions that have a polynomial in the numerator, denominator, or both. Although rational expressions can seem complicated because they contain variables, they can be simplified in the same way that numeric fractions, also called numerical fractions, are simplified.

## What does it mean when an expression is rational?

Definitions: A rational expression is the ratio of two polynomials. If f is a rational expression then f can be written in the form p/q where p and q are polynomials.

## How do you know if it’s a rational expression?

Rational expressions are fractions that have a polynomial in the numerator, denominator, or both.

## Why is it a rational equation?

When we have an equation where the variable is in the denominator of a quotient, that's a rational equation. We can solve it by multiplying both sides by the denominator, but we have to look out for extraneous solutions in the process.

## Why is it called a rational expression?

An algebraic expression where both the numerator and the denominator are polynomials e.g. is called a rational expression. Since the denominator can't be zero there are values of x which are excluded from the rational expression.

## What is the definition of a rational expression?

Definitions: A rational expression is the ratio of two polynomials. If f is a rational expression then f can be written in the form p/q where p and q are polynomials.

## Which of the following is the correct definition for rational expression?

Correct answer: The rational expression is a ratio of two polynomials. The denominator cannot be zero.

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