= √5 ( 3 + 2√10 )
= 3√5 + 2√50
= 3√5 + 10√2
= ( 3 - √2 ) ( 3 + 2 )
= 9 + 6 - 3√2 - 2
= 9 + 6 - 2 - 3√2
= 13 - 3√2
1. √5 ( 3 + 2√10 )
2. = ( 3 - √2 ) ( 3 + 2 )
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nomor 1 :
= √5 ( 3 + 2√10 )
= 3√5 + 2√50
= 3√5 + 10√2
nomor 2 :
= ( 3 - √2 ) ( 3 + 2 )
= 9 + 6 - 3√2 - 2
= 9 + 6 - 2 - 3√2
= 13 - 3√2
1. √5 ( 3 + 2√10 )
= 3√5 + 2√50
= 3√5 + 10√2
-------------------------
2. = ( 3 - √2 ) ( 3 + 2 )
= 9 + 6 - 3√2 - 2
= 9 + 6 - 2 - 3√2
= 13 - 3√2