5/(n^3=5n^2)=4/(n+5)+1/n^2

Answer 1

1. I assume you are solving
2. I assume that the = should be + (since they are on the same key)

so
5/(n^3+5n^2)=4/(n+5)+1/n^2
5/(n^2(n+5)) = 4/(n+5) = 1/n^2

multiply both sides by n^2(n+5)

5 = 4n^2 + n+5
4n^2 + n = 0
n(4n+1) = 0
n = 0 or n = -1/4
but n cannot be zero because of the original last term
so

n = -1/4

Answer 2

thank you sooo much :)