Opusc nawiasy i wykonaj redukcje wyrazow podobnych. a)-3ab(-6a²-2ab-b²)-(3ab³+6a²b2) b)6a(5a²-8b)-10a(6b+7a²)-3ab c)[(8x³-4x²y²)-2(3x²y²+4x³)]*(-2x²y²) d)4c-2(c-3)-3[c-3(4-2c)+8]

a)-3ab(-6a²-2ab-b²)-(3ab³+6a²b2) 18a3b+6a2b2+3ab3-3ab3-6a2b2=18a3b b)6a(5a²-8b)-10a(6b+7a²)-3ab 30a3-48ab-60ab-70a3-3ab=-40a3-111ab c)[(8x³-4x²y²)-2(3x²y²+4x³)]*(-2x²y²) [8x3-4x2y2-6x2y2-8x3]*(-2x²y²)= (-10x2y2)*(-2x²y²)=20x4y4 d)4c-2(c-3)-3[c-3(4-2c)+8]= 4c-2c+6-3[c-12+6c+8]= 2c+3[7c-4]=2c+21c-12=23c-12