​The roots of the equation $$x^2 - 7x+12= 0$$​​ are:​

Correct option is A

Given:

$$x^2 - 7x+12= 0$$

Solution:

$$x^2 - 7x+12= 0$$

x²-3x -4x +12 = 0  (-3 $$\times$$ -4= 12 , -3-4 =-7)

x( x-3) -4( x-3) = 0

(x-3) (x-4) =0

Roots are-

x-3=0

x=  3

& x-4 =0

x= 4

Option (a) is right.