Coupling (US) is an American version of the British sitcom of the same name. It stars Rena Sofer[?] and Sonya Walger[?] and, like the original, is based on Friends.
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... solution(s) x to the quadratic equation
<math>ax^2+bx+c=0</math>
in terms of the coefficients a, b and c, which are assumed to be real (but see below for ...