Answered

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1. (8- 5√5)( 8- 5√5)
2. ( 3√7+ √11)( 3√7- √11)
3. (5 - 2√2)2
4. (3+√5)( 4 - √2)

Sagot :

10095563

Answer:

1. 64- 40√5 - 40√5 +125

64-80√5 +125

64+125 -80√5

189-80√5

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