(-4.0 + 9.0*b)/(7.0 + b) - (44.0 - 16.0*b)/(-14.0 + b^2 + 5.0*b)
/ 2 \ (-44 + 16*b)*(7 + b) + (-4 + 9*b)*\-14 + b + 5*b/ -------------------------------------------------- / 2 \ (7 + b)*\-14 + b + 5*b/
(-14 + b*(5 + b))*(-4 + 9*b) - 4*(7 + b)*(11 - 4*b) --------------------------------------------------- (-14 + b*(5 + b))*(7 + b)