The roots of $2x^2 + 7x - 1 = 0$ are —

• a$\dfrac{-7 \pm \sqrt{57}}{4}$
• b$\dfrac{7 \pm \sqrt{57}}{4}$
• c$\dfrac{-7 \pm \sqrt{41}}{4}$
• d$\dfrac{-7 \pm \sqrt{49}}{4}$