defence exam Army Havildar SAC Mock Test Series 2025 Mathematics Quadratic Equations

The quadratic equation with real coefficients whose one root is 7 + 5i, will be

1
x2 - 14x + 74 = 0
2
x2 + 14x + 74 = 0
3
x2 - 14x - 74 = 0
4
x2 + 14x - 74 = 0
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