Question

How do you simplify `3a^2b^-4` and write it using only positive exponents?

Answer 1

See a solution process below:

Explanation:

Use this rule of exponents to simplify the expression:

`x^color(red)(a) = 1/x^color(red)(-a)`

`3a^2b^color(red)(-4) => 3a^2 * 1/b^color(red)(- -4) => 3a^2 * 1/b^4 => (3a^2)/b^4`