![subject](/tpl/images/cats/mat.png)
Mathematics, 03.02.2020 16:48 coollid876
Eloise started to solve a radical equation in this way: square root of negative 2x plus 1 β 3 = x square root of negative 2x plus 1 β 3 + 3 = x + 3 square root of negative 2x plus 1 = x + 3 square root of negative 2x plus 1 β 1 = x + 3 β 1 square root of negative 2 x = x + 2 (square root of negative 2 x)2 = (x β 4)2 β2x = x2 β 8x + 16 β2x + 2x = x2 + 8x + 16 + 2x 0 = x2 + 10x + 16 0 = (x + 2)(x + 8) x + 2 = 0 x + 8 = 0 x + 2 β 2 = 0 β 2 x + 8 β 8 = 0 β 8 x = β2 x = β8 both solutions are extraneous because they don't satisfy the original equation. what error did eloise make?
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:30
Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:30
Carl's candies has determined that a candy bar measuring 3 inches long has a z-score of +1 and a candy bar measuring 3.75 inches long has a z-score of +2. what is the standard deviation of the length of candy bars produced at carl's candies?
Answers: 1
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 01:00
The actual length of side t is 0.045cm. use the scale drawing to find the actual side length of w
Answers: 1
You know the right answer?
Eloise started to solve a radical equation in this way: square root of negative 2x plus 1 β 3 = x s...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 30.11.2020 20:00
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 30.11.2020 20:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 30.11.2020 20:00
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 30.11.2020 20:00
![question](/tpl/images/cats/mat.png)
Mathematics, 30.11.2020 20:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 30.11.2020 20:00
![question](/tpl/images/cats/mat.png)
Mathematics, 30.11.2020 20:00
![question](/tpl/images/cats/mat.png)
Mathematics, 30.11.2020 20:00
![question](/tpl/images/cats/istoriya.png)
History, 30.11.2020 20:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/fizika.png)
Physics, 30.11.2020 20:00
![question](/tpl/images/cats/biologiya.png)