Question

One of the roots of the equation x2 + mx – 5 = 0 is 2. Find m.

(A) -2 (B) -1/2 (C) 1/2 (D) 2

please explain​

Answer 1

Answer:

c

Step-by-step explanation:

p(2) = (2)2 + 2m -5 = 0

P(2) = 4-5 +2m = 0

-1 +2m = 0

2m = 1

m= 1/2

Answer 2

Answer:

x^2+mx-5....

solution- 2^2+2m-5=0

-1+2m=0

2m=1

m=1/2