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What is the exact value of the expression √72 - √8 + √128? Simplify if possible. 8 √2 12 √2 8 √3 12 √3

What is the exact value of the expression √72 - √8 + √128? Simplify if possible. 8 √2 12 √2 8 √3 12 √3
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What is the exact value of the expression √72 - √8 +  √128? Simplify if possible.

8 √2
12

√2
8 √3
12 √3
User Tristan Djahel
by
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1 Answer

3 votes
√72 can be written as 3√8 , √128 as 4√8.. Here, we have to solve √72 -√8 +√128 .. i.e, 3√8 - √8 + 4√8.. which is equal to 6√8 or can be written as 12√2 //
User Adam Ranganathan
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