Register
What are the solutions of the equation (z^2)+9=0
77.8k views
3 votes
What are the solutions of the equation (z^2)+9=0

User Lenilsondc
by
3.8k points

1 Answer

6 votes

Answer:

z = ± 3i

Explanation:

note that
√(-1) = i

Given

z² + 9 = 0 ( subtract 9 from both sides )

z² = - 9 ( take the square root of both sides )

z = ±
√(-9) = ±
√(9(-1)) = ±
√(9) ×
√(-1) = ± 3i

User Ricardo Marimon
by
4.0k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

3.3m questions

4.2m answers

Other Questions

A study was completed in Florida. In southern Florida, the study involved 3,000 patients; 54% of them experienced flulike symptoms during the same month. The study had a margin of error of 1.8%. What does
The sanchez family goes out for dinner, and the price of the meals is $60. The sales tax on the Meals is 7 percent, and they also want to leave a 15 percent tip. What is the total cost of the meal? Analyze
Simplify: 10 ÷ [(5 + 2) − 5]
WHAT IS 33 TIMES 5 TELL ME THE ANWER
At the beginning of a population study, a city had 240,000 people. Each year since, the population has grown by 9.7%. Lett be the number of years since start of the study. Let y be the city's population.
Link Copied!