Question

If x=k be a solution of the quadratic equations x^2+4x+3=0, then k=-1 and --- (1 Point)

Answer 1

Answer:

k = -3

Step-by-step explanation:

If x = k is the solution of given quadratic equation than we have :

k² + 4k + 3 = 0

k² + 3k + k + 3 = 0

k(k + 3) + (k+3) = 0

(k+3)(k+1) = 0

We have k = -1 & k = -3