1.

If the roots of the equation x2 - nx + m = 0, Differ by 1, then

A. n2 - 4m - 1 = 0
B. n2 + 4m - 1 = 0
C. m2 + 4n + 1 = 0
D. m2 - 4n - 1 = 0
Answer» B. n2 + 4m - 1 = 0


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