0
Anonymous
51
Clara Lebsack ∙
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x = ± 7i where i is the imaginary square root of -1
Wiki User
x2 + 49 = 0 ∴ x2 = -49 ∴ x = 7i
-4 and 4
7
x2 + y2 = 49
x = sq root of 36x = 6x = -6