anygirls562
Answered

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How do I solve this problem using the quadratic formula?

How Do I Solve This Problem Using The Quadratic Formula class=

Sagot :

devishri1977

Answer:

Step-by-step explanation:

a = -3 ; b = -6  ; c = -11

D = b² - 4ac

 = (-6)² - 4*(-3)*(-11)

 = 36 - 132

 = - 96

[tex]\sqrt{D}=\sqrt{-96}=\sqrt{96i^{2}} =9.8i[/tex]

[tex]x =\dfrac{-b+\sqrt{D}}{2a} \ ; \ x =\dfrac{-6-\sqrt{D}}{2a}\\\\\\x=\dfrac{6+9.8i}{2*(-3)} \ ; \ x=\dfrac{6-9.8i}{2*(-3)}\\\\\\x=\dfrac{6}{-6}+\dfrac{9.8}{-6}i \ ; \ x=\dfrac{6}{-6}-\dfrac{9.8}{-6}i\\\\\\x=-1-\dfrac{4.9}{3}i \; \ x=-1+\dfrac{4.9}{3}i[/tex]

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