Question

(1/a)+(2/a^2)=0

Solved for zero

I'm unsure about the process to solve this, when I do it like my teacher says, it doesn't work. This is for an online advanced math class in which you get three tries to solve the problem. I have already used two. Any help would be greatly appreciated.

Answer 1

1/a + 2/a^2 = 0
a/a^2 + 2/a^2 = 0
(a+2)/a^2 = 0
a+2 = 0
a = -2

check:

1/-2 + 2/4 = -1/2 + 1/2 = 0

Answer 2

Thanks, that was a great help. I'll most likely be back. This is a really tough class.