Algebra I Honors Simplifying Radical Expression Review

Algebra I Honors Simplifying Radical Expression Review Worksheet (Quiz and Test Review)
No Calculator. Write your answers in simplest radical form.
Due on Wednesday, June 1st. This will count for 40 points in Class Work.
Simplify the Radical.
Solve Radical Equations. Check for extraneous
1. √726
values.
2. √225
26. √3π‘˜ = 3
27. √8 βˆ’ 2𝑏 = 𝑏
3. 9√343
4. 11√500
5. 14√96
π‘ž
28. √ = √2π‘ž + 6
√6
29. √4𝑝 + 4 = √3𝑝 + 13
Simplify the Radical Expression.
6.
7.
30. βˆ’3 + βˆšπ‘Ÿ + 7 = 2
3
√8
5
√2673𝑑 6 π‘₯ 6
Simplify the Rational Expression
8. √28𝑦
31.
4
9. √81𝑀 4
18
6π‘₯βˆ’48
π‘˜βˆ’9
32. 4π‘˜βˆ’36
3
10. √704𝑦 6 𝑝4
𝑐 2 +2π‘βˆ’24
33. 𝑐 2 +11𝑐+30
Add or subtract to simplify the radical expression.
11. βˆ’βˆš3 βˆ’ √3 + √27
12. 5√11 βˆ’ √11 + 4√11
13. 4√2 + 6√2 + 2√32
14. 8√27 βˆ’ 5√18 βˆ’ 6√48
15. √63 + √27 βˆ’ √112 + √12
35.
36.
39.
40.
19. √176𝑏(βˆ’βˆš45𝑏 2 + √28𝑏 3 )
βˆ’
21.
22.
23.
24.
25.
√5
5√21𝑛2
5√27𝑛
1+√7β„Ž
√5β„Ž
1βˆ’βˆš3
1βˆ’βˆš2
7√5π‘˜ 4 𝑛4
6√11π‘˜ 5 𝑛4
βˆ™
36𝑛2 βˆ’36
7
9
8𝑐+16
12π‘˜βˆ’30
÷
12
𝑝2 βˆ’5π‘βˆ’14
4𝑝
28π‘˜βˆ’70
12π‘˜
÷ (𝑝 βˆ’ 7)
Simplify the Complex fraction.
+ √7)
Simplify by Dividing. (Remember to rationalize the
denominator)
4√7
27𝑛2 βˆ’27𝑛 7𝑛
38. 𝑦 2 +7𝑦+12 βˆ™ 𝑦+6
18. (√3 + √7)(βˆ’βˆš3 βˆ’ √7)
20.
βˆ’π‘₯+4
𝑐+2
𝑦 2 +4π‘¦βˆ’12
1
2
5√7)(βˆ’2√11𝑛2
35𝑝2 +6π‘βˆ’8
π‘₯βˆ’4
37. π‘βˆ’11 βˆ™
16. βˆ’βˆš44 βˆ™ βˆ’2√48
(7√11𝑛2
30𝑝2 +18π‘βˆ’12
Multiply and Divide Rational Expressions
Simplify by Multiplying.
17. (√3 + √5)
34.
41.
42.
4
3 7
+
4 4
5𝑛 1
+
8 5
𝑛2
43. 3
44.
45.
2
8
2 5
9 𝑠+6
+
5
9
12
𝑠2 βˆ’
5
12 7
βˆ’
7 2
βˆ’
2
Add or Subtract the Rational Expressions.
46.
6𝑔
5
4π‘”βˆ’2
βˆ’ 2π‘”βˆ’7
βˆ’9
π‘žβˆ’7
47. π‘ž2 βˆ’π‘žβˆ’2 βˆ’ π‘ž2 βˆ’π‘žβˆ’2
48.
49.
βˆ’9
+
π‘˜βˆ’3
π‘˜ 2 βˆ’4π‘˜βˆ’32
π‘˜ 2 βˆ’4π‘˜βˆ’32
2π‘›βˆ’8𝑧
2𝑛+4𝑧
4𝑛2 𝑧 2
2𝑝3 +3
βˆ’ 4𝑛2 𝑧 2
6𝑝3
50. 4𝑝5 βˆ’8 βˆ’ 4𝑝5 βˆ’8
Rationalize the Denominator. Then simplify.
12
27
51. √50 βˆ’ √ 8
3
52. √13
53.
54.
55.
56.
57.
20
√10
3√22βˆ™βˆš28
√8βˆ™βˆš77
√75
√2
√10
√6
2
√2
15
βˆ™βˆš6
2
÷ √15
+
12
37
√18
1
58. 5√5 βˆ’ √45 + 10√5
Solve the absolute Value equations
59. |π‘₯ βˆ’ 5| = 13
60. |4 βˆ’ π‘₯| = 19
61. |2π‘₯ βˆ’ 7| = 43
62. |3 + 8π‘₯| = βˆ’1
63. |2π‘₯ + 5| βˆ’ 7 = 22
64. 5 βˆ’ |π‘₯ βˆ’ 3| = 1
Tricky ones:
65. |4π‘₯ βˆ’ 6| = π‘₯
66. |π‘₯| = π‘₯
67. |π‘₯| = βˆ’π‘₯
Equations with squares. Solve for x. Write your
answer in simplest radical form where necessary.
68. (π‘₯ βˆ’ 3)2 = 64
69. (π‘₯ + 5)2 = 81
70. (2π‘₯ + 7)2 = 25
71. (4π‘₯ βˆ’ 12)2 = 0
72. (π‘₯ + 9)2 = βˆ’36
73. (π‘₯ + 7)2 = 95
74. (π‘₯ βˆ’ 8)2 = 64
75. π‘₯ 2 + 6π‘₯ + 9 = 16
76. π‘₯ 2 + 2π‘₯ + 1 = 42
Complete the square. Solve by completing the
square. Write your answer in simplest radical
form.
77. π‘₯ 2 + 6π‘₯ + 4 = 0
78. π‘₯ 2 βˆ’ 16π‘₯ βˆ’ 17 = 0
79. π‘₯ 2 βˆ’ 4π‘₯ βˆ’ 77 = 0
80. π‘₯ 2 + 16π‘₯ + 20 = 0
81. 2π‘₯ 2 βˆ’ 14π‘₯ = βˆ’13
True or False:
82. √ 2 =
√37
√2
83. √25 + 36 = √25 + √36
84. √100 βˆ’ 49 = √100 βˆ’ √49
85. √8 βˆ™ √6 = √48
In class Review (Answers to this portion will be
posted AFTER in class game.
Chapter 12 Review.
86.
87.
π‘₯2 +6π‘₯+9
4π‘₯3
2π‘₯2 +12π‘₯+18
16π‘₯7
𝑑 2 βˆ’9π‘‘βˆ’22
5π‘‘βˆ’1
𝑣+2
÷ (5𝑑 2 + 9𝑑 βˆ’ 2)
π‘£βˆ’2
88. 2𝑣2 βˆ’π‘£βˆ’15 βˆ’ 𝑣2 +2π‘£βˆ’15
5
π‘ž
2π‘žβˆ’27
89. π‘ž+4 = π‘žβˆ’3 + π‘ž2 +π‘žβˆ’12
Find the product
90.
24 14 x 6
ο‚·
40
7x2
91. x 2  8 x  15 x 2 ο€­ 2 x ο€­ 8
ο‚·
x 2  7 x  10 3x 2  9 x
Find the quotient.
92.
4 x 4 ο€­ 20 x 2 16 x 2 ο€­ 112 x
ο‚Έ
x7
x 2 ο€­ 49
93.
94.
24
6
ο‚Έ
3
5 x 25 x 2
2π‘₯ 2 βˆ’9π‘₯βˆ’5
5βˆ’π‘₯
÷
2π‘₯ 2 +7π‘₯+3
π‘₯+3
Solve.
95. A kayaker travels 9 miles up a river with a
current of 1.25 miles per hour. He then
travels 15 miles back down the river. If the
kayaker can paddle at 3.75 mph in still
water, how long is the kayakers’ trip?
Find the sum.
96.
11 4

2x 7x
97.
5 x3

x2 x ο€­1
Find the difference
98.
xο€­2
x ο€­ 6x  9
2
ο€­
x ο€­ 5 2x
ο€­
8x
x6
99.
Solve.
100.
2x 
101.
3x ο€­ 4
2
ο€½
xο€­2 xο€­2
x  2 2x
18
ο€­
ο€½ 2
x ο€­ 4 x ο€­ 1 x ο€­ 5x  4
Simplify.
102.
x 1
x  2 x ο€­ 15
2
π‘₯2 βˆ’64
4π‘₯2 βˆ’7π‘₯+3
π‘₯+8
3π‘₯βˆ’3
Simplify.
4π‘₯ 2
103.
6√
104.
(2 βˆ’ 4√3)
1
3
2
3𝑛2
Answer Key:
1. 11√6
2. 15
3. 63√7
4. 110√5
5. 56√6
6. 2
5
36. 4𝑛+4
37.
72
π‘βˆ’11
π‘¦βˆ’2
38. 𝑦 2 +7𝑦+12
39.
40.
3π‘˜
7
𝑝+2
4𝑝
8
41. 5
25𝑛+8
7. 3𝑑π‘₯ √11𝑑π‘₯
42.
8. 2√7𝑦
9. 3w
43. -20
10. 4𝑦 2 𝑝 3√11𝑝
11. √3
12. 8√11
13. 18√2
14. βˆ’15√2
15. βˆ’βˆš7 + 5√3
16. 16√33
17. 8 + 2√15
18. βˆ’10 βˆ’ 2√21
19. βˆ’12π‘βˆš55𝑏 + 8𝑏 2 √77
20. βˆ’154𝑛2 + 17π‘›βˆš77 βˆ’ 35
21.
22.
23.
4√35
5
√7𝑛
3
√5β„Ž+β„Žβˆš35
5β„Ž
24. βˆ’1 βˆ’ √2 + √3 + √6
25.
7√55π‘˜
40𝑛2
5𝑠+111
44. 45𝑠2 βˆ’108
25
45. βˆ’ 28
46.
12𝑔2 βˆ’62𝑔+10
10π‘”βˆ’35
π‘ž+2
47. βˆ’ π‘ž2 βˆ’π‘žβˆ’2
π‘˜βˆ’12
48. π‘˜ 2 βˆ’4π‘˜βˆ’32
βˆ’3
49. 𝑛2 𝑧
50.
51.
52.
βˆ’4𝑝3 +3
𝑝5 βˆ’8
βˆ’11√6
20
√39
13
53. 2√10
54. 3
55.
56.
5√15
2
5√2
2
57. 3√2
31. π‘₯βˆ’8
58. 4√5
59. {-8,18}
60. {-15,23}
61. {-18,25}
62. {}
63. {-17,12}
64. {-1,7}
32. 4
65. {5 , 2}
33. (𝑐+5)
66. All non-negative numbers
67. All negative numbers and 0
68. {-5,11}
69. {-14,4}
66π‘˜
26. {3}
27. {-4,2}
28. {-36/11 }
29. {9}
30. {18}
3
1
(π‘βˆ’4)
6𝑝+6
34. 7𝑝+4
35. -1
6
70. {-6,-1}
71. {3}
72. {}
73. {βˆ’βˆš95 βˆ’ 7, √95 + 7}
74. {0,16}
75. {-7,1}
76. {βˆ’βˆš42 βˆ’ 1, √42 βˆ’ 1}
77. {βˆ’βˆš5 βˆ’ 3, √5 βˆ’ 3}
78. {-1,17}
79. {-7,11}
80. {βˆ’2√11 βˆ’ 8, 2√11 βˆ’ 8}
βˆ’βˆš23+7 √23+7
, 2 }
2
81. {
82. True
83. False
84. False
85. True
Answers to Remaining 19 questions will be
posted after in-class game.