If\[a{{x}^{2}}+bx+c=0\], then x = [MP PET 1995]

• A. \[\frac{b\pm \sqrt{{{b}^{2}}-4ac}}{2a}\]
• B. \[\frac{-b\pm \sqrt{{{b}^{2}}-ac}}{2a}\]
• C. \[\frac{2c}{-b\pm \sqrt{{{b}^{2}}-4ac}}\]
• D. None of these