Respuesta :
Answer:
Option A.
Step-by-step explanation:
If a quadratic equation is defined as
[tex]ax^2+bx+c=0[/tex] ....(i)
then the quadratic formula is
[tex]x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]
Consider the given quadratic equation is
[tex]-6x^2-8x+12=0[/tex] ....(ii)
On comparing (i) and (ii), we get
[tex]a=-6,b=-8, c=12[/tex]
Hence, the correct option is A.