Question

How do I solve this problem using the quadratic formula?

Answer 1

Explanation:

a = -3 ; b = -6 ; c = -11

D = b² - 4ac

= (-6)² - 4*(-3)*(-11)

= 36 - 132

= - 96

`√(D)=√(-96)=\sqrt{96i^(2)} =9.8i`

`x =(-b+√(D))/(2a) \ ; \ x =(-6-√(D))/(2a)\\\\\\x=(6+9.8i)/(2*(-3)) \ ; \ x=(6-9.8i)/(2*(-3))\\\\\\x=(6)/(-6)+(9.8)/(-6)i \ ; \ x=(6)/(-6)-(9.8)/(-6)i\\\\\\x=-1-(4.9)/(3)i \; \ x=-1+(4.9)/(3)i`