X*(3x-1) = 4x-1x

X*(6y-0,5x) = 6xy-1,5x

A*(2a+b+5) = 3a+ab+5a

A*(1,7-0,3a-a2 квадрат) = 1,7a-1,3a-2a2

B*(2,4ab+2 1/5a-1,1b) = 3,4ab + 3 1/5a-2,1b

321

2y(y-4) = 3y-6y

0,3x(x2-2x) = 1,3x2-0,6x

5a(2a-3b-4) = 10a-13ab-20a

0,2y(5y2-2y+6xy) = 1y2-0,6y+1,2xy