You are Here: Home >< Maths

# Why can't I simplify (32x5)^−2/ 5 watch

1. So I know the negative power indices rule.

I do 1/((32x^5)^2/5)

And then I get the 5th root of 32, which is 2.

So I have 1/(2x^5)^2

But that is wrong. The answer is 1/4x^2

Where am I going wrong?

Thanks
2. (Original post by blobbybill)
So I know the negative power indices rule.

I do 1/((32x^5)^2/5)

And then I get the 5th root of 32, which is 2.

So I have 1/(2x^5)^2

But that is wrong. The answer is 1/4x^2

Where am I going wrong?

Thanks
You have on the denominator which turns into when you take the fifth root of 32 and

### Related university courses

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: January 29, 2017
Today on TSR

### Exam Jam 2018

Join thousands of students this half term

Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams