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MAT 222 Week 4 DQ 1 Solving Quadratic Equations
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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:
a. 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
b. 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.
c. 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.
d. 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.
e. 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
