Ответ:
(√7+3)(3-√7-1) = (3 - √7) * (3 + √7) - (√7 + 1) * (√7 - 3) = 2 - 6√7 - 1 = -√7 - 1
(4√2-√3)(2√2+5√3) = 8*2 - 2√6 + 20√6 - 3 = 19√6 + 13
(√p-q)(√p+q) = (√p)² - q² = p - q²
(6√13) (6 + √13) = 36√13 + 78
(√5-x)(√5+x) = (√5)² - x² = 5 - x²
(√19+√17)(√19-√17) = (√19)² - (√17)² = 2
(√6+√2)² = (√6)² + 2√6√2 + (√2)² = 8 + 4√3
(3-2√15)² = (3)² - 2 * 3 * 2√15 + (2√15)² = 9 - 12√15 + 60 = 69 - 12√15
Объяснение:
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Ответ:
(√7+3)(3-√7-1) = (3 - √7) * (3 + √7) - (√7 + 1) * (√7 - 3) = 2 - 6√7 - 1 = -√7 - 1
(4√2-√3)(2√2+5√3) = 8*2 - 2√6 + 20√6 - 3 = 19√6 + 13
(√p-q)(√p+q) = (√p)² - q² = p - q²
(6√13) (6 + √13) = 36√13 + 78
(√5-x)(√5+x) = (√5)² - x² = 5 - x²
(√19+√17)(√19-√17) = (√19)² - (√17)² = 2
(√6+√2)² = (√6)² + 2√6√2 + (√2)² = 8 + 4√3
(3-2√15)² = (3)² - 2 * 3 * 2√15 + (2√15)² = 9 - 12√15 + 60 = 69 - 12√15
Объяснение: