Register
Which of the following is an equivalent equation to completing the square of the expression x^2 +8x +12 = 0? Select one. A) (x + 4)^2 = 4 B) (x − 4)^2 = 4 C) (x + 8)^2 = 8 D) (x - 8)^2 = 8
50.8k views
2 votes
Which of the following is an equivalent equation to completing the square of the expression x^2 +8x +12 = 0? Select one. A) (x + 4)^2 = 4 B) (x − 4)^2 = 4 C) (x + 8)^2 = 8 D) (x - 8)^2 = 8

User Granny
by
5.1k points

1 Answer

2 votes

\begin{gathered} (x+4)^2=4 \\ x^2+2\cdot x\cdot4+4^2=4 \\ x^2+8x+16=4 \\ x^2+8x+16-4=0 \\ x^2+8x+12=0 \\ The\text{ equation }(x+4)^2=4\text{ is equivalent to }x^2+8x+12=0 \end{gathered}

User Gdejohn
by
5.9k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

5.6m questions

7.3m answers

Other Questions

1/7 + 3/14 equivalent fractions
185g in the ratio 2:3
(3x1,000,000)+(3x100,000)+(2x100) what is this number written in standard form?
The function h = -t2 + 95 models the path of a ball thrown by a boy where h represents height, in feet, and t represents the time, in seconds, that the ball is in the air. Assuming the boy lives at sea
Which of the following would be a good name for the function that takes the length of a race and returns the time needed to complete it? A. Time(race) B. Length(time) C. Length(cost) D. Year(time) E. Cost(time)
Link Copied!