Разложите на множители: x(a-x)+y(x-a) b(c-b)-d(b-c) 2x(3x-5)+17(5-3x) (a-b)-a(b-a) (x-y)+b(y-x) a(x-5)-b(5-x)

X(a-x)+y(x-a)=(a-x)(x-y)
b(c-b)-d(b-c)=(c-b)(b+d)
2x(3x-5)+17(5-3x)=(3x-5)(2x-17)
(a-b)x^2 -a(b-a)x^2 =(a-b)(a-1)x^2  
(x-y)x^2 +b(y-x)=(x-y)(b-x^2 )
a(x-5)x^2 -b(5-x)=(x-5)(b-x^2 )