MathematicsEasy129×since 2002Q5130If f(x) is a quadratic expression such that f (1) + f (2) = 0, and −-− 1 is a root of f (x) = 0, then the other root of f(x) = 0 is :A−-− 58{5 \over 8}85B−-− 85{8 \over 5}58C58{5 \over 8}85D85{8 \over 5}58Check answerSkip