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Powers and Roots Practice Test 5
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© examsnet.com
Question : 27
Total: 31
[
2
+
√
2
+
1
2
+
√
2
−
1
2
−
√
2
]
is simplified to:
2
√
2
2
+
√
2
2
2
−
√
2
Validate
Solution:
[
2
+
√
2
+
1
2
+
√
2
−
1
2
−
√
2
]
=
[
2
+
√
2
+
2
−
√
2
−
2
−
√
2
(
2
+
√
2
)
(
2
−
√
2
)
]
=
2
+
√
2
−
2
√
2
4
−
2
=
2
+
√
2
−
2
√
2
2
=
2
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