Question

If 2 is the root of the quadratic equation x² + 3x + k = 0, then find the value of k. ​

Answer 1

Answer:

K=-10

Step-by-step explanation:

X^2+3X+K=0

(2)^2+3(2)+K=0

4+6+k=0

K=-10

Answer 2

If 2 is the root then,

x^2 + 3x + k = 0

2^2 + 3(2) + k = 0

4 + 6 + k = 0

10 + k = 0

K = -10