7 7(3√2+√7) 21√2+7√7
= =
3√2-√7 (3√2-√7)(3√2+√7) 11
2 2√(3√7-√5) √(174√7-58√5)
√(3√7+√5) √(3√7)²-√5²) 29
7 7(3√2+√7) 21√2+7√7
= =
3√2-√7 (3√2-√7)(3√2+√7) 11
2 2√(3√7-√5) √(174√7-58√5)
= =
√(3√7+√5) √(3√7)²-√5²) 29