Answer:
x=4, x=3
B is correct.
Step-by-step explanation:
Given: [tex]x^2-7x+12=0[/tex]
Using middle term splitting factor the left side equation.
[tex]x^2-4x-3x+12=0[/tex]
[tex](x-4)(x-3)=0[/tex]
Equate each factor to 0 and solve for x
x-4=0 or x-3=0
x=4 and x=3
Hence, The solution of the equation is 4 or 3
