Expression 5: "y" Superscript, 2 , Baseline equals StartFraction, "B" squared Over 4 , EndFraction StartFraction, left parenthesis, "L" squared minus 4 "x" squared , right parenthesis Over "L" squared plus 8 "W" "x" plus 4 "W" squared , EndFraction left parenthesis, 1 minus left parenthesis, StartFraction, left parenthesis, StartRoot, 5.5 "L" squared plus 11 "L" "W" plus 4 "W" squared , EndRoot , right parenthesis left parenthesis, StartRoot, 3 , EndRoot "B" "L" minus 2 "D" Subscript, "L" 4 , Baseline StartRoot, "L" squared plus 2 "W" "L" plus 4 "W" squared , EndRoot , right parenthesis Over left parenthesis, StartRoot, 3 , EndRoot "B" "L" left parenthesis, StartRoot, 5.5 "L" squared plus 11 "L" "W" plus 4 "W" squared , EndRoot minus 2 StartRoot, "L" squared plus 2 "W" "L" plus 4 "W" squared , EndRoot , right parenthesis , right parenthesis , EndFraction , right parenthesis times left parenthesis, 1 minus StartRoot, left parenthesis, StartFraction, left parenthesis, "L" left parenthesis, "L" squared plus 8 "W" "x" plus 4 "W" squared , right parenthesis , right parenthesis Over left parenthesis, 2 left parenthesis, "L" minus 2 "W" , right parenthesis "x" squared plus left parenthesis, "L" squared plus 8 "L" "W" minus 4 "W" squared , right parenthesis "x" plus 2 "L" "W" squared plus "L" squared "W" plus "L" cubed , right parenthesis , EndFraction , right parenthesis , EndRoot , right parenthesis , right parenthesis squaredy2=B24L2−4x2L2+8Wx+4W21−5.5L2+11LW+4W23BL−2DL4L2+2WL+4W23BL5.5L2+11LW+4W2−2L2+2WL+4W2·1−LL2+8Wx+4W22L−2Wx2+L2+8LW−4W2x+2LW2+L2W+L32