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# What is the solution of x2 plus x plus 1 equals 0?

Updated: 4/28/2022

Wiki User

14y ago

Best Answer

x2 + x + 1 = 0

∴ x2 + x + 1/4 = -3/4

∴ (x + 1/2)2 = -3/4

∴ x + 1/2 = ± √(-3/4)

∴ x = - 1/2 ± (i√3) / 2

∴ x = (-1 ± i√3) / 2

Wiki User

14y ago
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