Rational Expressions 8

Rational Expressions 8
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4422 views, 1 rating - 00:10:55
Part of video series Rational Expressions
Taught by YourMathGal

Meets NCTM Standards:

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
In the final problem, the second-to-last simplifying step should read
(4x - 6)/(2(2x^2 + 5x - 12)).
More practice adding and subtracting rational expressions that already have a common denominator, and how to simplify if it is possible to cancel.
• How do you add an subtract rational expressions with common denominators?
• How do you subtract and simplify (5x^3 - 13)/(x^2 - 3x + 2) - (10x^2 - 13)/(x^2 - 3x + 2)?
• How do you factor so you can you simplify or cancel terms in (5x^3 - 10x^2)/(x^2 - 3x + 2)?
• How do you add and simplify (15x^2 - 4x)/(9x^2 - 4) + 14x/(9x^2 - 4)?
• How do you factor so you can you simplify or cancel terms in (15x^2 + 10x)/(9x^2 - 4)?
• How do you subtract and simplify (7x - 12)/(4x^2 + 10x - 24) - (3x - 6)/(4x^2 + 10x - 24)?
• How do you factor so you can you simplify or cancel terms in (4x - 6)/(4x^2 + 10x - 24)?
The problems in this lesson are more practice doing the same thing as the previous recent lessons have done. Some terms have higher powers than 2, however. Many good problems are shown step by step and explained in their entirety. Great practice lesson.
• Currently 4.0/5 Stars.
Reviewed by MathVids Staff on May 01, 2010.