:. a) a(2a+ b) – ab; в) 2(4m² −3) + m(-8m −3); a) c(c²+3c) - 3c²; 394 б) 4y(2х - у) - 8xy + 2y²; г) -x(2х - y) - (-2x²+ xy). б) -5x(x² + 3x-4) - 20x; срочно даю 50б
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