Expression 4: "R" squared plus "R" squared minus 2 "R" "R" Subscript, 1 , Baseline equals "R" squared plus "R" squared plus 3 squared plus 6 "R" Subscript, 1 , BaselineR2+R21−2RR1=R21+R21+32+6R1
4
Expression 5: "R" squared plus left parenthesis, 2 "R" plus 6 , right parenthesis "R" Subscript, 1 , Baseline plus 3 squared minus "R" squared equals 0R21+2R+6R1+32−R2=0
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Expression 6: "R" Subscript, 1 , Baseline equals StartFraction, negative 2 "R" minus 6 Over 2 , EndFraction plus StartRoot, left parenthesis, negative "R" minus 3 , right parenthesis squared minus 9 plus "R" squared , EndRootR1=−2R−62+−R−32−9+R2