Question

How do you simplify `((a^2-b^2)/a)(a/(a^2-2ab+b^2))`?

Answer 1

In cases like this you first factorise, and then see what you can cancel.

Explanation:

Use the special products rules:

`=((a+b)(a-b))/a*a/((a-b)^2)`

`=(cancela*(a+b)cancel((a-b)))/(cancela*(a-b)cancel((a-b)))=(a+b)/(a-b)`