Answer:
9x^2 -49
Step-by-step explanation:
We recognize that this is of the form
(a+b)(a-b) = a^2 - b^2
3x = a and 7 =b
(3x)^2 - 7^2
9x^2 -49
1. 4
2. 42
3. 30
4. 4
5. 18
6. 8
7. 36
8. 9
9. 19
10. equivalent
11. not equivalent
12. not equivalent
13. not equivalent
14. equivalent
15. equivalent
Have a good day, my dude.
Answer:wheres the diagram?
Step-by-step explanation:
