Factorize x^2/y^2-a^2/b^2
I want the rules when doing this and how.
and also how to factorize trinomials.
(rules for factorizing)

With finding limits of multi variable !

The function v(r)=4/3pir^3 can be used to find the volume of air inside a basketball given its radius. what does v(r) represent

Which of the following best describes the graph below? + + 2 + 3 + 4 1 o a. it is not a function. o b. it is a one-to-one function. o c. it is a many-to-one function. o d. it is a function, but it is not one-to-one.