Tính a) (6•8^4-5•8^3+8^2):8^2, c) (2•3^4+3^2-7•3^3):3^2b) (5•9^2+3^5-2•3^3):3^2...
Bài 1:Làm phép tính chia
a) (6•8^4-5•8^3+8^2):8^2. c) (2•3^4+3^2-7•3^3):3^2
b) (5•9^2+3^5-2•3^3):3^2. d) (6•2^3-5•2^4+2^5):2^3
Bài 2:Làm phép tính chia
d) [(x-y)^3+3(x-y)] :1/3(x-y)
e) (8x^3-27y^3):(2x-3y)
f) [5(x+2y)^6-6(x+2y)^5]:2(x+2y)^4