Ashford 4: – Week 3 – Discussion 1

 

Your initial discussion thread is due on Day 3 (Thursday) and you have until Day 7 (Monday) to respond to your classmates. Your grade will reflect both the quality of your initial post and the depth of your responses.

 

     

Simplifying   Radicals

In this discussion, you will simplify and compare equivalent expressions written both in radical form and with rational (fractional) exponents. Read the following instructions in order and view the example (available for download in your online classroom) to complete this discussion. Please find the rational exponent problems assigned to you in the table below: 

  

If   the last   letter of your first name is

On   pages 576 – 577, do the following problems 

 

A   or L

42   and 101

 

B   or K

96   and 60

 

C   or J

46   and 104

 

D   or I

94   and 62

 

E   or H

52   and 102

 

F   or G

90   and 64

 

M   or Z

38   and 72

 

N   or Y

78   and 70

 

O   or X

44   and 74

 

P   or W

80   and 68

 

Q   or V

50   and 76

 

R   or U

84   and 66

 

S   or T

54   and 100 Simplify each expression using the rules of exponents      and examine the steps you are taking. Incorporate the following five 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 the thought behind your math work. Principal root Product rule Quotient rule Reciprocal nth       root

Refer to Inserting Math Symbols for guidance with formatting. Be aware with regards to the square root symbol, you will notice that it only shows the front part of a radical and not the top bar. Thus, it is impossible to tell how much of an expression is included in the radical itself unless you use parenthesis. For example, if we have √12 + 9 it is not enough for us to know if the 9 is under the radical with the 12 or not.  Therefore, we must specify whether we mean it to say √(12) + 9  or  √(12 + 9), as there is a big difference between the two. This distinction is important in your notation.

Another solution is to type the letters “sqrt” in place of the radical and use parenthesis to indicate how much is included in the radical as described in the second method above. The example above would appear as either “sqrt(12) + 9” or  “sqrt(12 + 9)” depending on what we needed it to say. 

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. Respond to at least two of your classmates’ posts by Day 7.

Carefully review the Grading Rubric for the criteria that will be used to evaluate your discussion.