Problem 108 of 7
Find a quadratic equation with complex conjugate roots i and -i.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
build conjugate factors and multiply.
Hidden until you reveal it.
Roots must be conjugates; equation may use real coefficients.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Write factors (x-root1)(x-root2).
2. Multiply conjugate factors so imaginary terms cancel.
3. Set the resulting quadratic equal to zero.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Using only one root factor.