(x-4)(x-7)<0
(x-4)(x-7)=y
y=0
(x-4)(x-7)=0
x-4 = 0 x=7
x=4
Ответ: (7; 4)
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(x-4)(x-7)<0
(x-4)(x-7)=y
y=0
(x-4)(x-7)=0
x-4 = 0 x=7
x=4
Ответ: (7; 4)