en15712novotneye en15712novotneye
  • 22-03-2017
  • Mathematics
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What are the roots of 7x2 + 392 = 0?

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SoccerGirl920
SoccerGirl920 SoccerGirl920
  • 22-03-2017
x=2i square root of 14, x=-2i square root of 14.
Hope this helps!
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Аноним Аноним
  • 22-03-2017
I hope this helps you



7 (x^2+56)=0


x^2= -56


x^2=i^2.56



x= i.2 square root of 14


x= -i.2 square root of 14
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