Download Chapter 6 Homework

Math 60
Textbook
: Elementary Algebra
: Beginning Algebra, 12th edition, by Lial
Remember : Many homework exercises are used to teach you a concept we did not
cover in class. It is important for you to attempt ALL homework problems assigned.
Ch 6: Factoring and Applications
§ 6.1: 3 – 19 eoo, 27, 29, 31, 39 – 63 e00, 65 – 69 odd, 79 – 99 odd
§ 6.2: 3, 25 – 75 odd
Please note: If you’re asked to factor a polynomial and you realize that the polynomial is not
factorable, then you can just write “not factorable” or “prime”. Why prime? Think about it …
If you were asked to write 24 as a product of prime factors, then you would write:
24 = 2 • 2 • 2 • 3 or just 23 • 3
§ 6.3:
§ 6.4:
§ 6.5:
§ 6.6:
However, suppose you were asked to write 5 as a product of prime factors. Since 5 is
already a prime number, then you would just write “prime” because 5 is a prime number.
23 – 77 odd
3, 7 – 41 odd (omit #21 and #39), 51 – 67 odd
15, 17, 21, 23 – 71 eoo, 79
19, 21, 23, supplemental problems (attached below – please do them)
Your textbook has an answer key at the end of the book!!!
Are you checking your answers as soon as you are done with each problem?
(I hope you are)
Why ??? Because studies show that the more times you do the same wrong thing,
the more likely you will do the same wrong thing on the quiz or exam. 
Homework: Section 6.6 supplement 1. The area of a rectangle is 168 square centimeters (168 cm2). The length of the rectangle is 2 cm
more than the width. Find the dimensions of the rectangle.
2. The area of a rectangle is 15 square feet (15 ft2). The length of the rectangle is 3.5 feet more than the
width. Find the dimensions of the rectangle.
3. The product of two consecutive odd integers is 15. Find the integers.
4. The product of two positive consecutive odd integers is 15. Find the integers.
5. The product of two consecutive integers is 420. Find the integers.
6. The product of two consecutive integers is 13 less than five times their sum. Find the integers.
Answer 1. 12 cm  14 cm
key:
4. 3 and 5
Textbook Homework Exercises
3. –5 and –3, or 3 and 5
2. 2.5 ft  6 ft
5. 20 and 21, or –21 and –20 6. 8 and 9, or 1 and 2
Math 60, Spring 2017