Solving Quadratic Equations

In this discussion, you will solve quadratic equations by two main methods: factoring and using the quadratic formula. Read the following instructions in order and view the  MAT222 Week 4 Discussion Example   Download MAT222 Week 4 Discussion Example to complete this discussion. Please complete the following problems.

Problem #1

Use FACTORING to solve

 x3 – 9x = 0

Problem #2

Use the QUADRATIC FORMULA to solve

· 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.