Question

Find the solution
of (x-1) (x-2) (x-3) = 0

Answer 1

just put each bracket equal to zero e.g. x-1=0 then x=1

Answer 2

x-1=0 x-2=0 x-3=0
x-1+1=0+1 x-2+2=0+2 x-3+3=0+3
x=1 x=2 x=3

So the solution set is {1,2,3}

Answer 3

yes