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Step-by-step explanation:
7+ root 5/7-root 5×7 +root 5 / 7 + root 5
(7+root 5)^2 / (7)^2 -(root 5)^2
49 +5 +14 root 5 / 49 - 5
54 + 14 root 5 / 44
a - b root 5 = 54 + 14 root 5 / 44
a = 54/44 = 27 /22
- b root 5 = 14 root 5 / 44
- b =14 / 44
- b = 7 / 22
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