How to factor the expression completely: ((1+(4/x))^2)+((1-(4/x))^2)
\[(1+(\frac{4}{x})^2)+(1-(\frac{4}{x})^2)\]
Is that the problem?
Yes it is
Actually the (^2) is on the outside of the parentheses.
\[(1+\frac{4}{x})^2+(1-\frac{4}{x})^2\]
Is that it?
Yes! Sorry for the confusion..
Expand each binomial and collect the like terms.
Does that simplify to 16/x?
I am so sorry again, but there's supposed to be a minus between the two quantities.. I got mixed up after all the parentheses
\[1+\frac{8}{x}+\frac{16}{x^2}+1-\frac{8}{x}+\frac{16}{x^2}\]
Collect the like terms.
With the minus in between I get 16/x? Is that the answer then?
yes
Thank you so much!
yw
Could you help with another problem?
Only if you double check to make sure you have posted it correctly before I work on it.
I will. I'll attach the file, thank you.
The problem is in the attachment
Factor out: \[(\frac{1}{2}x ^{-\frac{1}{2}})(7x+4)^{-\frac{1}{2}}\]
That's the first portion of the problem right?
It says to factor completely. That is what I would do as a first step is factor out those two common factors.
How do I factor out the (7x+4)^(-1/2) if the first one is positive?
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