1 If l, m, n are real, then the roots by the equation : (l – m)x2 – 5(l + m)x – 2(l – m) = 0 are

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If l, m, n are real, l not equal to m then the roots by the equation :
(l – m)x2 – 5(l + m)x – 2(l – m) = 0 are
(A) Real and equal (B) Complex
(C) Real and unequal (D) None of these (IIT JEE 1979)
  1. Ranveer Dhawan
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