subject
Mathematics, 01.03.2021 19:10 danidavis2002

Gabriella is solving the equation x^2+2x-8=0x 2 +2x−8=0 by completing the square with the steps below. Step 1: x^2+2x=-8x 2 +2x=−8 Step 2: x^2+2x+1=8+1x 2 +2x+1=8+1 Step 3: \left(x+1\right)^2=9(x+1) 2 =9 Step 4: x+1=\pm\sqrt{9}x+1=± 9 ​ Step 5: x=-1\pm\sqrt{9}x=−1± 9 ​ Gabriella finds out that her final answer is incorrect. During which step did Gabriella make her initial error, if using completing the square? Step 1 Step 2 Step 3 Step 4

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 20:00
Ana drinks chocolate milk out of glasses that each holdof a liter. she has of a liter of chocolate milk in her refrigerator. 10 how many glasses of chocolate milk can she pour?
Answers: 2
question
Mathematics, 21.06.2019 21:30
Scott’s bank account showed a balance of $750 on sunday. during the next five days, he made one deposit of $140 and numerous withdrawals of $180 each. let x represent the number of withdrawals that scott made. write an inequality that can be used to find the maximum number of withdrawals that scott could have made and maintain a balance of at least $100. do not use a dollar sign ($) in your response.
Answers: 1
question
Mathematics, 21.06.2019 23:30
The perimeter of an equilateral triangle is 4 cm more than the perimeter of a square and the length of a side of the triangle is 8 cm more than the length of a side of the aware. find the length of a side of the equilateral triangle
Answers: 1
question
Mathematics, 22.06.2019 01:30
Travis and paula went to lunch.travis ordered a sandwich for $7.50 and paula ordered a burger for $5.25.after lunch,they left a 15% tip for the waiter.how many money did they spend altogether?
Answers: 3
You know the right answer?
Gabriella is solving the equation x^2+2x-8=0x 2 +2x−8=0 by completing the square with the steps belo...
Questions
question
English, 19.03.2020 02:35
question
Mathematics, 19.03.2020 02:35
question
Mathematics, 19.03.2020 02:35
Questions on the website: 13722360