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17 votes
17 votes
Simplify (5+√5) (5–√5)​

User Pmb
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2 Answers

17 votes
17 votes

Answer:

20

Explanation:

expand out the brackets

User Woody Zenfell III
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13 votes
13 votes

Answer:

Simplify the radical by breaking the radicand up into a product of known factors.

20

Explanation:

User Dave Goten
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