If one root of the equation x square +7x+k=0 is -2,then find the value of k and the other root

If one root of the equation x square +7x+k=0 is -2,then find the value

1.	If one root of the equation x square +7x+k=0 is -2,then find the value of k and the other root
Answer» Given equation,x^2 + 7x + k = 0 , given root -2Substituting value of x = -2 in the equation4 - 14 + k = 0k = 10Now the equation is x^2 +7 x + 10 = 0Or x^2 + 2x + 5x + 10\xa0= x(x + 2) + 5( x + 2)= (x + 5)(x + 2)x= -5, -2,so, other value of x is -5