Find the values of m and n, if (x-m) and (x-n) are the factors of the expression x^2+m x-n. (a) m...

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Find the values of m and n, if (x-m) and (x-n) are the factors of the expression x^2+m x-n.
(a) m=-1, n=-2
(b) m=0, n=1
(c) m=-1/2, n=1/2
(d) m=-1, n=2

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