The correct option is D Roots of equation
The value of m in equation 12m−10=6m+2 if substituted with '2', then it is called roots of equation.
Check the result for 2:,
12m−10=6m+2
12×2−10=6×2+2
24−10=12+2
14=14
Since equality is correct, then 2 is root of the equation.