16•(8+y) (4c+d)•8y 6•(p+3k-9t)
16•(8+y)=16*8+16у=128+16у(4c+d)•8y=4с*8y+d*8y=32cy+8dy6•(p+3k-9t)=6p+6*3k-6*9t=6p+18k-54t