6) 4y(к-р)-к+р=4ук-4ур-к+р= (4ук-к) -(4ур-р)=
=к(4у-1)-р(4у-1)=(к-р)(4у-1)
7) 8m(x+y)-x-y= 8m(x+y)+(-x-y)=8m(x+y)- (x+y)= (x+y)(8m-1)
9)2a(x-y)-x+y= 2a(x-y)+(-x+y)=2a(x-y)-(x-y)=(x-y)(2a-1)
№459
4) a³b²+a⁵b³= a³b²(1+a²b)
5)c³d²-c⁴d²= c³d²(1-c)
6)-x⁵y³-x³y⁵=-x³y³ (x²+y²)
№460.
3)2m(x-y)-y+x= 2m(x-y)+(x-y) = (x-y)(2m+1)
4) 2n(x-y)- (y-x)= 2n(x-y)+(x-y)=(x-y)(2n+1)
Надеюсь, всё верно.)