Question

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

Answer 1

Answer:

m = 1/2

Step-by-step explanation:

If (x = 2) is a root of the equation, then equation must satisfy x = 2.

x² + mx - 5 = 0

→ (2)² + m(2) - 5 = 0

→ 4 + 2m - 5 = 0

→ 2m - 1 = 0

→ 2m = 1

→ m = 1/2