This sequence of videos uses many different variables and works out the problems in detail (yea!), though perhaps doesn’t include quite enough plus/minus signs (so keep an eye out).
- Introduction to simplification of rational expressions (15:22) These videos include a proper treatment of excluded values. (Hooray!) –[Example 1]
–[Example 2]
–[Example 3]
–[Example 4]
–[Example 5]
–[Example 6] (factoring by grouping) - Simplify rational expressions with common monomial factors (0:55)
- Simplify the rational expression with common monomial factors
- Simplifying rational expressions with common binomial factors. (4:11) Given a rectangle with width and length $latex l = z^2 +6a –
27$, find the ratio of the width to the length of the rectangle. - Simpifying Rational Expressions: opposite (sign) common binomial factors and . (3:53)
- Simplifying rational expressions with common binomial factors What is the domain of the simplified expression?
- Simplifying Rational Expressions: Advanced Factorization (Grouping) (6:41)
What is the domain of the resulting expression? - Simplify the rational expression Simplify the rational expression