93.1k views
5 votes
If using the method of completing the square to solve the quadratic equation x^2+15x+21=0, which number would have to be added to "complete the square"?

2 Answers

3 votes

Answer:

my answer is 225/5 sorry comments for wrong

User Azamantes
by
7.2k points
6 votes

Explanation:

the answer is in the above image

If using the method of completing the square to solve the quadratic equation x^2+15x-example-1
User Jaydeland
by
7.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories