Philip P. answered 02/29/16
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x2 + 74 = 14x
x2 - 14x + 74 = 0
Use the quadratic formula:
x = (14/2) ± (1/2)√((-14)2-4*74)
x = 7 ± (1/2)√(-100)
x = 7 ± 5i