|a-2|+b^2+4b+4+√(c^2-c+1/4)=0
|a-2|+(b+2)^2+√(c-1/2)^2=0
|a-2|=0,(b+2)^2=0,√(c-1/2)^2=0
a=2,b=-2,c=1/2
√b^2*√a*√c
=√(-2)^2*√2*√(1/2)
=√[(-2)^2*1/2)]
=√(4*1/2*2)
=√4
=2
|a-2|+b^2+4b+4+√(c^2-c+1/4)=0
|a-2|+(b+2)^2+√(c-1/2)^2=0
|a-2|=0,(b+2)^2=0,√(c-1/2)^2=0
a=2,b=-2,c=1/2
√b^2*√a*√c
=√(-2)^2*√2*√(1/2)
=√[(-2)^2*1/2)]
=√(4*1/2*2)
=√4
=2