若(4x-3)²+|2y+1|=0,则x+2y=

问题描述:

若(4x-3)²+|2y+1|=0,则x+2y=

(4x-3)²+|2y+1|=0
则4x-3=0
2y+1=0
则x=3/4 y=-1/2
x+2y=3/4+2*(-1/2)=1/4