Rational Expression Review

Front

What is a rational expression?

Back

A rational expression is a fraction where both the numerator and the denominator are polynomials.

Front

How do you simplify a rational expression?

Back

To simplify a rational expression, factor the numerator and denominator and eliminate common factors.

Front

What does LCD stand for in rational expressions?

Back

LCD stands for Least Common Denominator, which is the smallest expression that can be used as a common denominator for two or more rational expressions.

Front

How do you find the LCD of 2x/(x+1) and (x^2-1)?

Back

The LCD is (x+1)(x-1).

Front

What is the first step in multiplying rational expressions?

Back

Multiply the numerators together and the denominators together.

Front

What is the simplified form of (x+3)/(x-4)?

Back

The simplified form is (x+3)/(x-4).

Front

What is the simplified form of (x-9)/(x+9)?

Back

The simplified form is (x-9)/(x+9).

Front

What is the result of simplifying 1/(x-9)?

Back

The result is 1/(x-9).

Front

What is the greatest common factor (GCF)?

Back

The GCF is the largest polynomial that divides two or more polynomials without leaving a remainder.

Front

What is the process of factoring in rational expressions?

Back

Factoring involves rewriting a polynomial as a product of its factors.