Question

绝对值m减3加括号m加n减2的2次方等于0求解

Answer 1

|m-3|+(m+n-2)^2=0

∵|m-3|≥0,(m+n-2)^2≥0,

又∵|m-3|+(m+n-2)^2=0

∴只能|m-3|=0,(m+n-2)^2=0

∴m-3=0,m+n-2=0

即m=3,n=-1