MAT222: Intermediate Algebra Solving Quadratic Equations

In this discussion, you will solve quadratic equations by two main methods: factoring and using the quadratic formula. Please complete the following problems according to your assigned number.

 

Use FACTORING to solve:

Use the QUADRATIC FORMULA to solve:


x2 – x – 6 = 0

 −8, 2

  • For the factoring problem, be sure you show all steps to the factoring and solving. Show a check of your solutions back into the original equation.
  • For the quadratic formula problem, be sure that you use readable notation while you are working the computational steps. Refer to the Inserting Math Symbols handout for guidance with formatting.
  • Present your final solutions as decimal approximations carried out to the third decimal place. Due to the nature of these solutions, no check is required.
  • Incorporate the following four math vocabulary words into your discussion. Use bold font to emphasize the words in your writing. Do not write definitions for the words; use them appropriately in sentences describing your math work.
    • Quadratic formula
    • Factoring
    • Completing the square
    • Discriminant

Your initial post should be at least 250 words in length. Support your claims with examples from required material(s) and/or other scholarly resources, and properly cite any references.

Field of study: 
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