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MAT1033 REVIEW SECTION 7.6 (DIVIDE RADICALS)
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Simplify. Assume that all variables represent positive numbers.
12
1)
3
A) 2
2)
9
4
C) 3
B)
9
4
C)
9
4
D) 2
C)
9
2
D) 4
D) 2
3
81
4
9
2
A)
4)
2
3
81
16
A)
3)
B)
21
7
B)
9
2
30
5
A) 3
6
B) 7
6
C) 3
5
D) 18
529 14
14
D) 23
Rationalize the denominator and simplify.
23
5)
14
A) 219
6)
14
14
C)
14
B) 10
10
10
C)
D) 10
49
2
A) 11
8)
23
10
10
A) 1
7)
B)
B)
49
2
2
C) 7
2
D)
4 19
19
D)
7
2
2
4
19
A) 365
B) 4 19
C)
1
16 19
19
9
28
9) -
A) -
3 7
14
B) -28
C) -
3 7
7
D) -3 7
2
3
10)
A) 2 3
B)
2 3
3
C)
4 3
3
D) 11
C)
5 6
6
D) 5 6
C)
3x
x
5
6
11)
A)
25 6
6
B) 41
18
x
12)
A) 3 2x
B) 3
2
x
D)
3 2x
x
11y3
27y
13)
A)
11y
3
B)
y 33
9
C)
11
3
D) y 33
B)
10z
4
C)
z
4
D)
z
160
14)
10z
A)
10z
40
Rationalize the denominator. Assume all variables represent positive numbers.
15)
3 6
5
3
A)
150
5
3
B)
3
750
5
C)
30
5
D)
150
5
16)
3
4
9x 2
3
A)
36x
9x
3
B)
3
324x
81
C)
2
324x 2
9x
3
D)
12x
3x
17)
3
3
5
6
A)
3
180
6
B)
3
1080
6
C)
30
6
C)
28 + 4
39
3
D)
180
6
Rationalize the denominator and simplify.
4
18)
7 - 10
A)
19)
21)
22)
B)
28 - 4
39
10
10
D)
4
7
4
10
3
5 + 4
A)
20)
28 + 4 10
3
15 - 4
11
-
3
B)
15 - 4
9
3
C)
-
15 + 4
11
3
D)
7 +4
3 -6
A)
21 - 24 + 4
33
3 -6
7
C)
21 - 24 + 4
39
3 -6
7
21 + 24 + 4
39
B)
D)
-
3 +6
21 - 24 - 4
33
7
3 -6
7
5 +8
7 -4
A)
35 - 32 + 8 7 - 4 5
9
C)
35 - 32 + 8
23
7 -4
B)
5
- 35 - 32 - 8 7 - 4 5
9
D)
35 + 32 + 8
23
7 +4
B)
4 5 - 10 + 4 14 + 8 2
2
5+1
4+ 2
A)
C)
4 5+
10 + 4 +
14
2
4 5-
10 + 4 14
2
D)
3
5-
10 + 4 14
2
5
3
15 + 5
20
3
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