могу сказать ответ будет х=1,5
(x + 3)* (x - 2) - (x - 3,5) * (x + 4) = = x^2 - 2x + 3x - 6 - (x^2 + 4x - 3,5x - 14) =
= x^2 - 2x + 3x - 6 - (x^2 + 0,5x - 14) =
= x^2 - 2x + 3x - 6 - x^2 - 0,5x + 14 =
= 0,5x + 8.
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могу сказать ответ будет х=1,5
(x + 3)* (x - 2) - (x - 3,5) * (x + 4) =
= x^2 - 2x + 3x - 6 - (x^2 + 4x - 3,5x - 14) =
= x^2 - 2x + 3x - 6 - (x^2 + 0,5x - 14) =
= x^2 - 2x + 3x - 6 - x^2 - 0,5x + 14 =
= 0,5x + 8.