Ответ:
9Y ^ 2 - 25 = 0
(3Y) ^ 2 - (5) ^ 2 = 0
(3Y-5) * (3Y+5)=0
--------------------------
3Y - 5 = 0
3Y = 5
Y = 5 : 3
Y = 1 ⅔
-------------------------
3Y + 5 = 0
3Y = -5
Y= - 1 ⅔
Объяснение:
Удачи=)
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Ответ:
9Y ^ 2 - 25 = 0
(3Y) ^ 2 - (5) ^ 2 = 0
(3Y-5) * (3Y+5)=0
--------------------------
3Y - 5 = 0
3Y = 5
Y = 5 : 3
Y = 1 ⅔
-------------------------
3Y + 5 = 0
3Y = -5
Y= - 1 ⅔
Объяснение:
Удачи=)