Mathematics
tesparza5
5

Solve x2 + 4x + 8 = 0.

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Carry751

x² + 4x + 8 = 0 x = -(4) ± √((4)² - 4(1)(8))                     2(1) x = -4 ± √(16 - 32)                  2 x = -4 ± √(-16)              2 x = -2 ± 4i           2 x = -1 ± 2i x=  -1 + 2i    or    x = -1 - 2i

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