## Question

###### (4.) Suppose that f(c) = ax? +br + â‚¬ is a degree-2 polynomial in Rlz]: Please prove that f(x) is reducible over R if and only if 62 4ac > 0.

(4.) Suppose that f(c) = ax? +br + â‚¬ is a degree-2 polynomial in Rlz]: Please prove that f(x) is reducible over R if and only if 62 4ac > 0.

## Answers

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