Hello,
I was wondering if there is any way to simplify
$\displaystyle \frac{1}{(x^3 + 2)^7} -\frac{(x^3 + 2)^7}{(x^8 + 12)^6} $
Thanks!
Do I have to work out the square root of $\displaystyle x^2 + 1 $? Because that would bring complex numbers into it, wouldn't it? And we aren't covering those in my course.
Otherwise, how can I multiply these terms when they aren't the same? It's just the $\displaystyle x^2 $ that's the same...?