е) ответ: 3√50 - 75
3√5 ×√10 - 3√5× 5√5 = 3√50 - 75
f) ответ: -√2 - 8
(1+4√2) × (√2 - 2√2) = (1+4√2) × (-√2) = -√2 - 8
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е) ответ: 3√50 - 75
3√5 ×√10 - 3√5× 5√5 = 3√50 - 75
f) ответ: -√2 - 8
(1+4√2) × (√2 - 2√2) = (1+4√2) × (-√2) = -√2 - 8