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tamara1809tamar
@tamara1809tamar
April 2022
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Задание 3 и 4 . Решение объяснить ! ( Фотография)
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кляча
Verified answer
№3
√47
4√7 = √16*7 = √112
16 = √256
2√3 + 9√2 = √4*3 + √81*2 = √12 + √162
Ответ: √47 - наименьшее
----------------------------------------------
№4
3х^2 + 14x + 15 = 0
D = 196 - 4*15*3 = 196 - 180 = 16; √D = 4
x1 = (-14 + 4)/ 6 = -10/6 = - 1 2/3
x2 = (-14 - 4)/6 = - 3
Ответ: (- 3 ) - меньший корень.
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Answers & Comments
Verified answer
№3√47
4√7 = √16*7 = √112
16 = √256
2√3 + 9√2 = √4*3 + √81*2 = √12 + √162
Ответ: √47 - наименьшее
----------------------------------------------
№4
3х^2 + 14x + 15 = 0
D = 196 - 4*15*3 = 196 - 180 = 16; √D = 4
x1 = (-14 + 4)/ 6 = -10/6 = - 1 2/3
x2 = (-14 - 4)/6 = - 3
Ответ: (- 3 ) - меньший корень.