Ответ:
7. 36x²-9=0
(6x-3)=0 (6x+3)=0
6x=3 6x= -3
x=2 x= -2
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Ответ:
7. 36x²-9=0
(6x-3)=0 (6x+3)=0
6x=3 6x= -3
x=2 x= -2