Inactive Tutor answered • 02/07/15
Tutor
New to Wyzant
That's because the solutions are two complex numbers.
This is verified by the discriminant of the quadratic formula
92 - 4(4)(7)
81 - 112
-31
Paul W.
asked • 02/07/15Having a problem finding the addition to get 9x
4x2+9x+7=0
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