kaleybear01ovk0hv kaleybear01ovk0hv
  • 16-12-2017
  • Mathematics
contestada

Which of the following is a solution of x^2 + 2x + 8?
A. 4 + i√7
B. −1 + i√7
C. 2 + i√7
D. −4 + i√7

Respuesta :

Аноним Аноним
  • 16-12-2017
x^2 + 2x + 8 = 0

(x + 1)^2 - 1 + 8 = 0

(x + 1)^2  =   -7

x + 1  = sqrt (-7)  = i sqrt7

x =  -1 + i sqrt7


Its B
Answer Link

Otras preguntas

What does Hajj mean?
What is 20% of $40.00 please help
wheels are 1.25 inches in diameter covert the wheels diameter to feet
how to do this equation by elimination 8x +14y= 4 and -6 + -7y =-10
How has the Pythagorean Theorem helped us through life?
What is the name of Fe2O3
What is 20% of $40.00 please help
What is 20% of $40.00 please help
A restaurant received a shipment of 42 gal of orange juice and 18 gal of cranberry juice. The juice needs to be poured into equal-sized containers. What is the
Describe how you solved the following problem:I have a jar filled with $100 worth of quarters, nickels, and dimes. I have the same amount of each type of coin.