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JEEMAIN and NEET
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Mathematics
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Class11
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Complex Numbers and Quadratic Equations
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If the eqn., $x^2-m(2x-8)-15=0$ has equal roots, then $m=?$
$\begin{array}{1 1}(A) 3\;or\;5 \\ (B) -3\;or \;5 \\ (C) 3\;or\;-5 \\(D) -3\;or\;-5 \end{array}$
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