Question

(iv) One of the roots of the equation x + mx-5=0is2findm A)-2 B)-1....2 C)2 D)1...2​

Answer 1

Step-by-step explanation:

For the equation, x2 + mx – 5 = 0

one of the roots is 2. So, 2 should satisfy the given equation.

(2)2+m×(2)−5=0

⇒4+2m−5=0

⇒2m−1=0

⇒m=12

Hence, the correct answer is

1

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2