162k views
1 vote
Express d² - 8d + 9 in completed square form.​

User Gngrwzrd
by
8.7k points

1 Answer

4 votes

Answer:

(d - 4)² - 7

Explanation:

Formula for completing the square: x² + ax + b = (x +
(a)/(2))² - (
(a)/(2))² + b

d² - 8d + 9 = (d -
(8)/(2))² - (
(8)/(2))² + 9

= (d - 4)² - 4² + 9

= (d - 4)² - 16 + 9

= (d - 4)² - 7

User Dyin
by
8.3k points

Related questions

asked Dec 14, 2024 83.9k views
Mohaghighat asked Dec 14, 2024
by Mohaghighat
8.5k points
1 answer
5 votes
83.9k views
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