Answers

2016-04-09T16:35:34+05:30
∛20 + 14√2 + ∛20 - 14√2
=2∛20

Here,  14√2 and  - 14√2 get cancelled.
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2016-04-09T16:45:13+05:30
Given,
 ∛20+ 14√2 +∛20-14√2
by re-arranging values,
∛20+∛20+14√2-14√2
= 2(∛20)
=2∛20
therefore,∛20+ 14√2 +∛20-14√2 = 2∛20
 


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