Answer:
2n(14n^2+3)=28n^4+16n I'm not sure if you meant to put the question mark between or not but I did it separately for -80^2=0 n would equal zero hope this helped
Step-by-step explanation:
I ask a moderator to delete my answer.
I worked in LATEX and my time was over and I lost everything.
7/4= 175%
hope this helps
Answer:1 2/5
8 1/5 = 41/5
6 4/5 = 34/5
41/5 - 34/5 = 7/5 which is the same as 1 2/5
100
i hope it helps
B