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Week 4
Written Assignment 2
Answer the following questions. First, save this file to your hard drive by selecting
Save As from the File menu. Click the white space below each question to maintain
proper formatting. Use Equation Editor to write mathematical expressions and
equations. Show your work (calculations and explanation) for every problem. The
credit will not be given if work is not shown.
Problem #1 (10 points)
Number problem.
One number is two less than another. Use a rational expression to represent the
sum of the reciprocals of the two numbers. Simplify your answer.
One number is two less than another. Let one of the numbers be “x” and let the second number be “x
2”. Use the rational expression to represent the sum of the reciprocals of the two numbers. For
example: x= one number, x2= other number {one number is two less than other number}
1/x+1(x2) is the sum of the reciprocals 1/x * (x2)/(x2)} + {1/(x2) * x/x}
= (x 2 + x)/{x(x  2x)} = (2x 2)/(x(x2))
Problem #2 (10 points)
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This note was uploaded on 09/26/2011 for the course MAT 117 taught by Professor Alkofahi during the Spring '09 term at University of Phoenix.
 Spring '09
 ALKOFAHI
 Math, Algebra

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