Elementary Algebra Practice Exam Solutions #20-22

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Taught by YourMathGal
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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 write and solve a system of equations from a word problem?
  • If 3 jackets and 2 hats cost $156, and 1 jacket and 5 hats cost $117, how much does each cost?
  • How do you solve the system of equations 3J + 2H = 156 and J + 5H = 117?
  • How can you check your answers to a system of equations?
  • If you know one of the values of a variable in a system of equation, how do you find the value of the other variable?
  • How do you multiply binomials and combine like terms?
  • How do you FOIL with two binomials?
  • How do you multiply and simplify (5x + 3)(7x - 2)?
  • How do you multiply and simplify (6x - 9)^2?
  • How do you square a binomial?
  • What is (3x + 11)(3x - 11)?
  • What is a difference of squares and how do you recognize them?
  • How do you find solutions to a factored equation that is equal to 0?
  • How do you find all solutions to (2x + 5)(x - 8) = 0?
  • What are the solutions to 4x(5x - 7)(3x + 5) = 0?
  • 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 topics covered in this video are writing and solving a system of equations from a word problem, multiplying binomials and combining like terms, and finding all solutions to a factored equation that is equal to 0.