Question

Find the roots of the quadratic equation by using quadratic formula x^2+4x+5=0
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Answer 1

Answer:

-4

Step-by-step explanation:

a=1, b=4, c=5

x=  (-b±√b^2-4ac)/2a

  =(-4±√4^2-4×1×5)/2×1

   =(-4±√16-20)/2

   =(-4±√-4)/2

Therefore the roots are -4+√-4/2 and -4-√4/2