Math
Exercise 4
Choose the best answer. Simplify as much as possible:
Question 1:
(a) |
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(b) |
0.444 |
(c) |
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(d) |
0.667 |
(c) |
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Use Rule 2 and remember: 2·2·2·2 = 16 = 24 |
Question 2:
(a) |
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(b) |
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(c) |
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(d) |
cannot be simplified |
(b) |
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Note: x2 + 6x + 9 = (x + 3)2
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Question 3:
(a) |
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(b) |
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(c) |
 |
(d) |
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(d) |
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Use Rule 1: |
Question 4:
Rationalize the denominator: 
(a) |
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(b) |
 |
(c) |
 |
(d) |
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(a) |
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