Hello, I want to factor the following:
1-(1/y^2)
I thought that this would be the correct answer:
1/y * (y-(1/y))
however my textbook says that this is correct:
(1-1/y) (1+1/y)
Can someone please tell me if my answer is just another way of how they did it in the second example, or am I wrong ?
Thanks
You're not wrong, it's just that rather than simplifying by removing common factors, you've made the expression more complicated.
I could write as if I wanted to, but would you class that as splitting it into its factors?