Answer:
x={7,3}
Step-by-step explanation:
x^2-2x+9+12=0
x^2-2x+21=0
(x-7)(x-3)=0
x-7=0
x=7
x-3=0
x=3
so
x={7,4}
there is no solution to this problem
you can replace it with whatever number you want
