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5 votes

X^2+4 √(2X)+8=0 \\ \\ \\ X=?

1 Answer

4 votes
x² + 4√(2x) + 8 = 0
x = -4√(2) +/- √(4√(2) - 4(1)(8))
2(1)
x = -4(1.414) +/- √(4(1.414) - 32))
2
x = -5.656) +/- √(5.656 - 32))
2
x = -5.656 +/- √(-26.344)
2
x = -5.656 +/- √(26.344)√(-1)
2
x = -5.656 +/- 5.13264064590538√(-1)
2
x = -5.656 +/- 5.13264064590538i
2
x = -5.656 + 5.13264064590538i x = -5.656 - 5.13264064590538i
2 2
x = -2.828 + 2.56632032295269i x = -2.828 - 2.56632032295269i

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