Problem 189 of 7
Find the missing coefficient in quadratic x^2+bx-10 given zeros 2, -5.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
use factor form and expand or compare coefficients.
Hidden until you reveal it.
Known zeros and partial quadratic must determine one missing coefficient.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Build factor form from the zeros or substitute the roots.
2. Expand or compare coefficients.
3. Solve for the missing coefficient.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Answers that use zeros directly as coefficients without expanding or substituting.