Lessons for Topic 1.11
Adding and subtracting rational expressionsRename over the common denominator, then combine the numerators.Lesson
Multiplying and dividing rational expressionsFactor, flip for division, cancel, multiply.Lesson
Simplifying a rational expression and where it is undefinedAny value that makes the denominator zero is excluded, and it stays excluded after canceling.Lesson
Simplifying rational expressionsFractions with polynomials: factor, cancel, note what is not allowed.Lesson