Mathematics, 16.05.2021 20:30 ShelleyPSeliger

Which three steps are correct when solving this quadratic equation by completing the square? x2 + 8x + 15 = 0
A)
x4 + 8x = -15
B)
x2 + 8x + 16 - 1
(x + 4)2 = 16
D)
(x + 4)2 = 1
E
x = -3 or x = 5

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 18:00, davidoj13

Aculture started with 3000 bacteria. after 5 hours it grew to 3900 bacteria. predict how many bacteria will be present after 9 hours

Answers: 3

continue

Mathematics, 21.06.2019 18:30, Jenniferwolf

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?

Answers: 1

continue

Mathematics, 21.06.2019 22:30, zach09912

Kevin's bank offered him a 4.5% interest rate for his mortgage. if he purchases 3 points, what will be his new rate?

Answers: 2

continue

Mathematics, 22.06.2019 00:00, emokitten

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )

Answers: 1

continue

You know the right answer?

Which three steps are correct when solving this quadratic equation by completing the square? x2 + 8...