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Please help with the attatched!

Please help with the attatched!-example-1

2 Answers

6 votes

Answer:


a = -9 - 11√(5) - √(5)b

a = 51

b= -11

User Thangaraj
by
7.9k points
4 votes

Answer: a + b = 40


(3+√(5))(7-6√(5))=3.7+7√(5)-3.6√(5)-6√(5).√(5)\\\\=21+6.5-11√(5)\\\\=51-11√(5)

because
(3+√(5))(7-6√(5))=a+b√(5)

=> a = 51

b = -11

=> a + b = 51 -11 =40

Explanation:

User Alex Lyalka
by
8.1k points