(a-b)(y-1)
(y-5)(x+y)
Объяснение:
y(a-b)-(a-b)=y(a-b)-1(a-b)=(a-b)(y-1)
x(y-5)-y(5-y)=x(y-5)+y(y-5)=(y-5)(x+y)
(a-b)(y-1)
(y-5)(x+y)
Объяснение:
y(a-b)-(a-b)=y(a-b)-1(a-b)=(a-b)(y-1)
x(y-5)-y(5-y)=x(y-5)+y(y-5)=(y-5)(x+y)