SOLUTION: Factor and explain: 1/4x^2 - 9. I have (1/36x^2-1)(9) as the answer which I got from using Mathway.com, but this doesn't make sense to me and I am unable to factor this on my own.

SOLUTION: Factor and explain: 1/4x^2 - 9. I have (1/36x^2-1)(9) as the answer which I got from using Mathway.com, but this doesn't make sense to me and I am unable to factor this on my own.

Algebra.Com

Question 567198: Factor and explain: 1/4x^2 - 9. I have (1/36x^2-1)(9) as the answer which I got from using Mathway.com, but this doesn't make sense to me and I am unable to factor this on my own.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Factor and explain: 1/4x^2 - 9.
---
The form is a "difference of squares".
It factors as follows:
[(1/2)x-3]
===========================
cheers,
Stan H.
============
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