Rational Expressions II

Front

What is a rational expression?

Back

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

Front

What is the common denominator?

Back

The common denominator is the least common multiple (LCM) of the denominators of the rational expressions involved.

Front

Back

Front

What is the process to subtract rational expressions?

Back

To subtract rational expressions, first find a common denominator, then subtract the numerators and simplify.

Front

Back

Front

Back

Front

What is the formula for the difference of squares?

Back

Front

What is the first step in simplifying a complex rational expression?

Back

Factor the numerator and the denominator where possible.

Front

What does it mean to 'cancel' in rational expressions?

Back

To 'cancel' means to remove common factors from the numerator and denominator.

Front

Back