ответ: x= -9, x= 3
Пошаговое объяснение:
36x2 -(3x -27)2 =0
(6x -(3x-27))(6x +(3x-27))=0
(6x-3x+27)(6x+3x-27) =0
(3x+27)(9x-27) =0
3(x+9)*9(x-3) =0
27(x+9)(x-3) =0
x+9 =0, x= -9
X-3=0, x=3
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ответ: x= -9, x= 3
Пошаговое объяснение:
36x2 -(3x -27)2 =0
(6x -(3x-27))(6x +(3x-27))=0
(6x-3x+27)(6x+3x-27) =0
(3x+27)(9x-27) =0
3(x+9)*9(x-3) =0
27(x+9)(x-3) =0
x+9 =0, x= -9
X-3=0, x=3