Elementary Algebra Practice Exam Solutions #25-27

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Taught by YourMathGal
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Lesson Summary:

This Elementary Algebra Practice Exam Solutions lesson provides step-by-step solutions to problems 25-27 from an online practice test. The lesson covers factoring, multiplication and division, adding and subtracting fractions with common denominators, and factoring again to simplify answers. The instructor emphasizes the importance of factoring correctly and reminds students not to cancel until both the numerator and denominator are factored.

Lesson Description:

These are solutions to a Practice Test made for my online Elementary Algebra class.

More free YouTube videos by Julie Harland are organized at http://yourmathgal.com

Questions answered by this video:
  • Where can I find Algebra practice exam problem questions and answers?
  • How do you simplify a fraction with a trinomial on top and bottom by factoring and canceling?
  • How do you factor and simplify (3x^2 - 8x - 16)/(2x^2 - 9x + 4)?
  • How do you factor and simplify (x^2 - 12x + 36)/(4x - 24)?
  • How do you multiply and divide fractions with polynomials?
  • How do you multiply and simplify (x - 3)/(4x^2 + x)*(8x + 2)/(x^2 - 9) by factoring and canceling?
  • How do you divide and simplify ((x^2 - 2x)/15)/((x - 2)/(5x)) by factoring and canceling?
  • How do you add or subtract fractions with polynomials?
  • How do you add and simplify (4x + 5)/(6x + 5) + (8x + 5)/(6x + 5)?
  • How do you subtract and simplify (x^2 + 3x)/(x^2 + x - 12) - (x^2 - 12)/(x^2 + x - 12)?
  • Staff Review

    • Currently 4.0/5 Stars.
    This lesson goes through some example problems from a practice Algebra exam. Each step in the problems is shown clearly. The first problem is started and then skipped over quickly without any explanation, however. The topics covered in this video are multiplying, dividing, adding, subtracting, factoring, simplifying, and canceling fractions with polynomials.