Question

one of the roots of eqn x×x+mx-5=0 is 2 find m​

Answer 1

${x}^{2} + mx - 5 = 0$

if one of the roots is 2,

${(2)}^{2} + m(2) - 5 = 0$

$4 + 2m - 5 = 0$

$2m = 1$

$m = \frac{1}{2}$

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