(2x-y)-2x+4y (-12a^3b+6a^2b^3-2ab^2)÷(-2a

问题描述:

(2x-y)-2x+4y (-12a^3b+6a^2b^3-2ab^2)÷(-2a
(2x-y)-2x+4y
(-12a^3b+6a^2b^3-2ab^2)÷(-2ab)

(2x-y)-2x+4y
3x-y -2x +4y
= x+3y
(-12a^3b+6a^2b^3-2ab^2)÷(-2ab)
= 6a^2-3ab^2+b