\(A=\left|x-3\right|+10\)
Vì :\(\left|x-3\right|\ge0\)
\(\Rightarrow A\ge10\)
\(\Rightarrow MinA=10khi\)
\(\left|x-3\right|=0\Rightarrow x=3\)
\(B=-7+\left(x-1\right)^2\)
Vì :\(\left(x-1\right)^2\ge0\)
\(\Rightarrow B\ge-7\)
\(\Rightarrow\)Min B = 7 khi :
\(\left(x-1\right)^2=0\)
\(\Rightarrow x=1\)