Rational Expressions and Excluded Values

Front

What is a rational expression?

Back

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

Front

What are excluded values in rational expressions?

Back

Excluded values are the values of the variable that make the denominator zero, which are not allowed in the expression.

Front

How do you simplify a rational expression?

Back

To simplify a rational expression, factor both the numerator and the denominator and then cancel any common factors.

Front

Back

Front

Back

Front

What does it mean for a rational expression to be undefined?

Back

A rational expression is undefined when its denominator equals zero.

Front

Back

Front

Back

Front

Back

Front

Back