Can someone check these answers

(4a)(7b) = 28ab

(10K)(2K)= 20K^2

(8x)(3xyz)= 24x^2yz

20m/m = 20

15p= 0
15p

n+n= n^2 or is it just the same?

dv(3dv) = 3d^2v^2

Thanks!

1) (4a)(7b); your answer: 28ab

Correct.

2) (10K)(2K); your answer: 20K²

Correct.

3) (8x)(3xyz); your answer: 24x²yz

Correct.

4) (20m)/m; your answer: 20

Correct.

5) (15p)/(15p); your answer: 0

No. Look back at (4). What was your value for "m/m" in (20m)/m = 20(m/m)?

6) n + n; your answer: n²

No. What does "squaring" indicate? Is "n + n" the same as "(n)(n)"?


7) dv(3dv); your answer: 3d²v²

Correct.

Eliz.

Thank you for checking it, I will probably have some more that needs to be checked. I will post it in the same thread.