若|a-2|+(b+3)²=0,则3a+2b=()
问题描述:
若|a-2|+(b+3)²=0,则3a+2b=()
答
a-2=0 b+3=0
a=2 b=-3
3a+2b
=3x2+2x(-3)
=6-6
=0
a-2|+(b+3)²=0,则3a+2b=(0)