Monthly Archives: March 2009

Algebra: Chapter 10, Lesson 6, page 451. Solving Rational Expressions We are now solving rational equations, they have an equal sign. With rational expressions on both side, we can sometimes structure these as ratios or proportions. We can solve proportions … Continue reading →

Algebra: Chapter 10, Lesson 5, page 445. Addition and Subtraction: Unlike Denominators (Chapter 10-5) This lesson is TOUGH and takes time to do right. We have to bring all of our tools to the problem. Know how to FOIL, recognize … Continue reading →

Algebra: Chapter 10, Lesson 4, page 442. Adding and Subtracting Rational Expressions with Like Denominators To add or subtract rational expressions with like denominators, add or subtract the numerators, and write the sum or difference over the common denominator. DON’T … Continue reading →

Algebra: Chapter 10, Lesson 3, page 439. Dividing Rational Expressions We divide rational expressions using the same techniques we used in Chapter 10-2. The only difference is that we have to change the division sign in front of the 2nd … Continue reading →

Algebra: Chapter 10, Lesson 2, page 436. Multiplying Rational Expressions To multiply rational numbers, we multiply the numerators and multiply the denominators. We multiply rational expressions in the same way. For example, we have the following examples: `–2/(2y+6)⋅3/(y–5)` First multiply … Continue reading →

Algebra: Chapter 10, Lesson 1, page 432. Simplifying Rational Expressions A rational expression is a quotient of 2 polynomials. A rational expression always indicates division. A rational expression is in simplest form when the numerator and denominator have NO COMMON … Continue reading →