Problem 73 of 7
Use i to solve equation x^2=-1.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
connect definition to equation solving.
Hidden until you reveal it.
Equation must isolate or reduce to x^2 equal to a negative number.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Rewrite the equation as x^2 equals a negative number.
2. Take square roots of both sides.
3. Use sqrt(-1)=i to write complex solutions.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Saying no solution without specifying no real solution.