-3(x-y^2)-0.5(2x-4y^2)怎么化简

问题描述:

-3(x-y^2)-0.5(2x-4y^2)怎么化简

-3(x-y^2)-0.5(2x-4y^2)
=-3x+3y^2-x+2y^2
=-4x+5y^2