2x-4的绝对值+(3y+6)*(3y+6)=0 则3x-4y+1
问题描述:
2x-4的绝对值+(3y+6)*(3y+6)=0 则3x-4y+1
答
|2x-4|+(3y+6)^2=0
==>2x-4=0,3y+6=0
==>x=2,y=-2
==>3x-4y+1=15