\(a,=-5xy\\ b,=-\dfrac{3}{4}x^2y^2\\ c,=\left(-xy\right)^3\\ d,=x+y\\ e,=\left(x-y\right)^5:\left(x-y\right)^4=x-y\\ f,=x-y+z\)
Đúng 0
Bình luận (1)