Problem 147 of 7
Choose the best method to solve quadratic x^2 - 8x + 20 = 0.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
select square roots, completing square, or formula.
Hidden until you reveal it.
Equation structure must make one method natural or efficient.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Inspect whether a square is already isolated.
2. Check whether completing the square is straightforward.
3. Use the quadratic formula when structure is less convenient.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Method choice without explaining why it fits the equation.