Expand ( x - 1/x^2)^4

We want to expand the expression:

We can just do it by brute force, this is:

First, rewrite our expression as the product of two square factors:

Now we can expand each one these two factors:

That can be simplified to

Now we can replace that in our original expression to get:

Now we can expand that last product, to get:

We can simplify that to:

That is the expanded expression.

answer: c i think

step-by-step explanation: