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inna [77]
3 years ago
5

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

Mathematics
1 answer:
zubka84 [21]3 years ago
5 0
X^2 + 2x + 8 = 0
x^2 + 2x = -8
x^2 + 2x + 1 = -8 + 1
(x + 1)^2 = -7
x + 1 = (+-) sqrt -7
x = -1 (+-) sqrt -7

solution is : x = -1 + i * sqrt 7
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