Question

Select the correct answer. One solution to a quadratic function, f, is given below. Which of the following statements is true about the given function? A. The other solution to function f is . B. The other solution to function f is . C. Function f has no other solutions. D. The other solution to function f is .

Answer 1

The correct option is (2)

For any quadratic equation: ax2 + bx + c = 0.

The complex roots are expressed in the form a ± bi.

where a is the real part

& b is the imaginary part.

Since, one root is √7 + 5i, therefore the other root will be of the form √7 - 5i.

Hence, option (2) is correct.