oblicz i przedstaw pełne obliczenia. (7√18-√8-2√200)²
(7√18 - √8 - 2√200)² = (7√(9 * 2) - √(4 * 2) - 2√(100 * 2))² = ( 7 * 3√2 - 2√2 - 2 * 10√2)² =
(21√2 - 2√2 - 20√2)² = (19√2 - 20√2)² = (-√2)² = 2
(7√18-√8-2√200)² = (21√2-2√2-20√2)² = (-√2)²= √4=2
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(7√18 - √8 - 2√200)² = (7√(9 * 2) - √(4 * 2) - 2√(100 * 2))² = ( 7 * 3√2 - 2√2 - 2 * 10√2)² =
(21√2 - 2√2 - 20√2)² = (19√2 - 20√2)² = (-√2)² = 2
(7√18-√8-2√200)² = (21√2-2√2-20√2)² = (-√2)²= √4=2