Объяснение:
2.
а) (14x-9+3x-25)/17x=(17x-34)/17x=17(x-2)/17x=(x-2)/x
б) (3*4a-5*5a)/(5a*4a)=(12a-25a)/20a^2=-13a/(20a^2)=-13/20a
в) (a(x+y)/xy^3)*(x^3y/8(x+y))=ax^2/8y^2
г) 16c^10/49в^6
3. (y-2)^2/(y^2-4)*y(y+2)/(10(y-2))=(y-2)/(y+2)*y(y+2)/(10(y-2))=y/10
80/10=8
Объяснение:
2.
а) (14x-9+3x-25)/17x=(17x-34)/17x=17(x-2)/17x=(x-2)/x
б) (3*4a-5*5a)/(5a*4a)=(12a-25a)/20a^2=-13a/(20a^2)=-13/20a
в) (a(x+y)/xy^3)*(x^3y/8(x+y))=ax^2/8y^2
г) 16c^10/49в^6
3. (y-2)^2/(y^2-4)*y(y+2)/(10(y-2))=(y-2)/(y+2)*y(y+2)/(10(y-2))=y/10
80/10=8