Ответ:
1) (a - b) * n = an - bn
2) -6x * (5y - 2x) = -30xy + 12x^2 = 12x^2 - 30xy
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Ответ:
1) (a - b) * n = an - bn
2) -6x * (5y - 2x) = -30xy + 12x^2 = 12x^2 - 30xy