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 example to complete this discussion:
- Find the problems assigned to you in the table below.
If the third letter of your last name is |
On page 636, solve the following problem by factoring |
Solve the following problem by using the Quadratic Formula |
A or L |
46 |
48 on p. 646 |
B or K |
88 |
46 on p. 646 |
C or J |
84 |
44 on p. 646 |
D or I |
10 |
20 on p. 646 |
E or H |
8 |
18 on p. 646 |
F or G |
6 |
16 on p. 646 |
M or Z |
38 |
48 on p. 636 |
N or Y |
40 |
50 on p. 636 |
O or X |
42 |
52 on p. 636 |
P or W |
44 |
54 on p. 636 |
Q or V |
80 |
56 on p. 637 |
R or U |
2 |
78 on p. 637 |
S or T |
4 |
82 on p. 637 |
- 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 Inserting Math Symbols 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
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