A = √9 - √77 √2 (√11 - √7) (9 + √77)A = 3 - √77 √2 (√11 - √7) (9 + √77)A = 3 - √77 √2 (√11) - √77 √2 (-√7) * (9 + √77)A = 3 - 2√847 + 14√77 + 9√154 - 77√2
Therefore, A = 3 - 2√847 + 14√77 + 9√154 - 77√2.
A = √9 - √77 √2 (√11 - √7) (9 + √77)
A = 3 - √77 √2 (√11 - √7) (9 + √77)
A = 3 - √77 √2 (√11) - √77 √2 (-√7) * (9 + √77)
A = 3 - 2√847 + 14√77 + 9√154 - 77√2
Therefore, A = 3 - 2√847 + 14√77 + 9√154 - 77√2.