Question

mấy bạn giúp mình với ạ

Answer 1

a: \(=\dfrac{-5}{3}\cdot7\cdot xy^2\cdot yz^2=-\dfrac{35}{3}\cdot xy^3z^2\)

b: \(=\dfrac{-1}{8}\cdot x^3y^3\cdot z^6\cdot\dfrac{8}{9}xy=\dfrac{-1}{9}x^4y^4z^6\)