Question

if the equation x2 +3x+2=0 and x2+kx+6=0 have a common root ,then find the values of k.

Answer 1

Answer:

k= 5 or 7

Step-by-step explanation:

x^ 2+ 3x+ 2= 0

x^2+2x+ x+ 2=0

x (x+2)+1 (x+2)=0

(x+2)(x+1)=0

x+2=0 or x+1=0

x=-2 or x= -1

again by putting the value of x= -2 or -1 in equation x2+kx+6=0 you will get the required value of k!!!!!

hope you will be benefited .