(c+1/c^{2})2
= (c+1/c)(c+1/c)
= c^{2}+1/c^{2}+1/c^{2}+1/c^{4}
=c^{2}+2/c^{2}+1/c^{4 }=c^{6}+2c^{2}+1
Hello, zbest1966!
Wow! . . . Can you make a few more errors ... please?
. . . Where is the ?
. . . This is terribly wrong!
. . . Well, you added correctly ...
. . . What happened to the denominator?
I will assume that the problem is: .
We have: .
"FOIL": .
. . . . .
. . . . .
. . . . .
...or [(c + 1) / c^2]^2 ?
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