Math 4

(1) Discuss one topic that you struggled with in this assignment. Be specific. Use a specific problem from the homework assignment or text and give as much of the solution process as you can. If you choose this option make sure you cover all three parts: several sentences on what you found confusing, a specific problem which was confusing, and your solution process up until where you got stuck. “I have no idea how to start” is not a solution process.(2) Discuss one example of 
a current homework topic 
arising in either your profession or your hobby of interest. Make sure your example is detailed and includes specific NUMERICAL examples. Your response should be a paragraph or more.

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Running head:

[INSERT TITLE HERE]

[INSERT TITLE HERE]

Student Name

Allied American University

Author Note

This paper was prepared for [INSERT COURSE NAME], [INSERT COURSE
ASSIGNMENT] taught by [INSERT INSTRUCTOR’S NAME].

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Directions: Please show all of your work for each problem. If applicable, you may find
Microsoft Word’s equation editor helpful in creating mathematical expressions in Word. There
is a tutorial on using this equation editor in Module 1 Lecture Notes. You also have the option of
hand writing your work and scanning it.

1. Find the greatest common factor. 4, 6, 12.

2. Factor. 24×3 + 30×2

3. Factor out the GCF with a negative coefficient. –24m2n6 – 8mn5 – 32n4

4. Factor completely by factoring out any common factors and then factoring by grouping.

6×2 – 5xy + 6x – 5y

5. The GCF of 15y + 20 is 5. The GCF of 15y + 21 is 3. Find the GCF of the product (15y +

20)(15y + 21).

6. The area of a rectangle of length x is given by 15x – x2. Find the width of the rectangle in

terms of x.

7. Factor the trinomial completely. x2 + 8x – 9

8. Factor the trinomial completely. 2×2 + 16x + 32

9. Complete the following statement. 6a2 – 5a + 1 = (3a – 1)(__?__)

10. State whether the following is true or false. x2 – 7x – 30 = (x + 3)(x – 10)

11. Factor completely. x2 + 11x + 28

12. Factor completely. 15×2 + 23x + 4

13. Factor completely. 6z3 – 27z2 + 12z

14. The number of hot dogs sold at the concession stand during each hour h after opening at a

soccer tournament is given by the polynomial 2h2 – 19h + 24. Write this polynomial in
factored form.

15. Find a positive value for k for which the polynomial can be factored. x2 – kx + 29

16. Factor completely. 9×2 + 4

17. Determine whether the following trinomial is a perfect square. If it is, factor the

binomial.x2 – 12x + 36

18. Factor completely. 25×2 + 40xy + 16y2

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19. Factor. s2(t – u) – 9t2(t – u)

20. State which method should be applied as the first step for factoring the polynomial. 6×3 +

9x

21. State which method should be applied as the first step for factoring the polynomial. 2a2 +

9a + 10

22. Solve the quadratic equation. 5×2 + 17x = –6

23. Solve the quadratic equation. 3x(2x – 15) = –84

24. The sum of an integer and its square is 30. Find the integer.

25. If the sides of a square are decreased by 3 cm, the area is decreased by 81 cm2. What were

the dimensions of the original square?

26. Write in simplest form.

8

14

9
27

x
x

27. Write in simplest form.

2

2

– 6 + 8
16

x x
x −

28. Write the expression in simplest form.
4 – 8 + 32

4 – 2 + 8
z yz y
yz z y
−
−

29. The area of the rectangle is represented by 5×2 + 19x + 12. What is the length?

5x + 4

30. Multiply.
3

8

9 8
2
x

x
⋅

31. Multiply. 2
3 12 7

– 5 4
x x

x x x
−

⋅
−

32. Divide.
2 6 5 15

21 12
x x− −

÷

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33. Divide. ( )

2 2

2
2

4
+ 2

6 – 12
x y

x xy
x xy
−

÷

34. Perform the indicated operations.
2 2

2 2

– 9 36 8
4 – 24 4 – 36 + 5 – 6
x x x x
x x x x x

−
⋅ ⋅

35. Find the area of the rectangle shown.

36. Subtract. Express your answer in simplest form.

7
20 20

x x
−

37. Subtract. Express your answer in simplest form.

3 12
4 4

x
x x

−
− −

38. Add. Express your answer in simplest form.

2 3 – 70
– 7 – 7
x x

x x
+

39. Add. Express your answer in simplest form.

2

8 10
s s
+

40. Add or subtract as indicated. 2
1 1 2

+ 6 – 6 36
r

r r r
− +

−

41. One number is 8 less than another. Let x represent the larger number and use a rational

expression to represent the sum of the reciprocals of the two numbers.

42. Simplify.

8
20
4
6

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43. Simplify.
10

30

a

b

b
−

44. What values for x, if any, must be excluded in the following algebraic fraction?

– 2
7

x

45. What values for x, if any, must be excluded in the following algebraic fraction?

2

2
9 14

x
x x

+
− +

46. Solve for x.
5
x

+ 6 = 1

47. Solve for x.
3

+ 5
– 3 – 3
x

x x
=

48. Solve for x.
2 6
7 x
=

49. One number is 3 times another. If the sum of their reciprocals is
2
9

, find the two numbers.

50. A 5-foot pole casts a shadow of 4 feet. How tall is a tree with a shadow of 16 feet?