please solve this problem
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(7 + √5) (7+ √5) = 49 + 5 + 14√5 = 54 + 14√5
7² - (√5)² 49 - 5 44
(7 - √5) (7 - √5) = (7 - √5)² = 54 - 14√5
( 7 - √5) (7 + √5) 7² - √5² 44
54 + 14√5 - 54 + 14√5
44
28√5 = 7√5
44 11
a = 0 b = 1/11
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