(root 5 +root 7 ) (root 5 -root 11)
Answers
Answered by
7
root5×5-root11×5+root7×5-root7×11
root25-root55+root35-root77
5-root55+root35-root77
Answered by
8
Answer:
(√5+√7)(√5-√11)
= 5-√55+√35-√77
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