Use the Quadratic Formula to solve the equation x2 + 4x = – 11.
O x = 2 + V15 or x = 2 - V15
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O x=2+iV7 or x = 2 - ivi
O * = - 2 + ivor x = -2-ivi
x
=
O x= - 2 + 15 or x = -2-15