(x +2) (x + 3)
Решение: (x +2) (x + 3) -54 =x(x + 1),
x^2 + 5x + 6 - 54 = x^2 + x
4x = 48, x = 12
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(x +2) (x + 3)
Решение: (x +2) (x + 3) -54 =x(x + 1),
x^2 + 5x + 6 - 54 = x^2 + x
4x = 48, x = 12