(x-2)^2 - x(x+4) = 28
x^2 - 4x + 4 - x^2-4x = 28
-8x +4 = 28
8x = -24
x= -3
Ответ:
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(x-2)^2 - x(x+4) = 28
x^2 - 4x + 4 - x^2-4x = 28
-8x +4 = 28
8x = -24
x= -3
Ответ: