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socceV4ansabe socceV4ansabe
  • 14-03-2017
  • Mathematics
Answered

Which of the following is a solution of x2 + 2x + 8?

4 + i times the square root of 7

−1 + i times the square root of 7

1 + i times the square root of 7

−4 + i times the square root of 7

Verified Answer :

Anonymous Anonymous
  • 14-03-2017

I hope this helps you


x^2+2x+8=0


x^2+2x+1+7=0


(x+1)^2= -7


(x+1)^2= i^2.7


x+1= i.square root of 7


x=-1+ i.square root of 7

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