.
The discriminant of this equation is negative
d = = = 36 - 4*7*6 = -132.
Therefore, the given equation does not have real roots, at all.
It has two roots in complex numbers, but not in real domain.
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- Introduction into Quadratic Equations
- PROOF of quadratic formula by completing the square
- HOW TO complete the square - Learning by examples
- HOW TO solve quadratic equation by completing the square - Learning by examples
- Solving quadratic equations without quadratic formula
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