Объяснение:
(x + 3)(x - 2) = x^2 + x - 6
x^2 - 2x + 3x - 6 = x^2 + x - 6
x^2 - 2x + 3x - x^2 - x = - 6 + 6
- 3x + 3x = - 6 + 6
0 = 0
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Объяснение:
(x + 3)(x - 2) = x^2 + x - 6
x^2 - 2x + 3x - 6 = x^2 + x - 6
x^2 - 2x + 3x - x^2 - x = - 6 + 6
- 3x + 3x = - 6 + 6
0 = 0