Which of the equations are true identities?
A. (3x – 2y)(2y – 3x) = 9x2 – 4y2
B. (2k +5r)(2k...
![subject](/tpl/images/cats/mat.png)
Mathematics, 16.04.2021 19:30 annalaurie7
Which of the equations are true identities?
A. (3x – 2y)(2y – 3x) = 9x2 – 4y2
B. (2k +5r)(2k – 5r) = 4k2 – 25r2
Choose 1
only A
only B
both A and B
Neither A nor B
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:00
Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.
Answers: 2
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 01:50
![question](/tpl/images/cats/en.png)
English, 22.06.2019 01:50
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 22.06.2019 01:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 22.06.2019 01:50