## tatumlee one year ago Zero and negative exponents question...

1. tatumlee

What is the simplified form of $3a ^{4}b ^{-2}c ^{3}$

2. ganeshie8

just need to remember this rule : $a^{-n} = \dfrac{1}{a^n}$

3. ganeshie8

$3a ^{4}b ^{-2}c ^{3} = \dfrac{3a ^{4}c^{3}}{b^2}$

4. tatumlee

I'm confused on how you got from $a ^{-n}=\frac{ 1 }{ a ^{n}}$ to that

5. ganeshie8

you're not alone, you're expected to be confused a bit when you encounter it for the first time watch this short video to get some intuition on that rule https://www.khanacademy.org/math/pre-algebra/exponents-radicals/negative-exponents-tutorial/v/negative-exponent-intuition

6. tatumlee

Thank you very much! All of these videos are exactly what I've been trying to find. @ganeshie8