Expression 6: "x" Subscript, 1 , Baseline equals StartFraction, negative "a" Over 2 , EndFraction minus StartRoot, left parenthesis, StartFraction, negative "a" Over 2 , EndFraction , right parenthesis squared minus "b" , EndRootx1=−a2−−a22−b
equals=
negative 2.5−2.5
6
Expression 7: "x" Subscript, 2 , Baseline equals StartFraction, negative "a" Over 2 , EndFraction plus StartRoot, left parenthesis, StartFraction, negative "a" Over 2 , EndFraction , right parenthesis squared minus "b" , EndRootx2=−a2+−a22−b
equals=
11
7
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Center:
center: left parenthesis, negative 6.5 5 , 3.4 2 , right parenthesis−6.55,3.42