Question

How do you simplify `(5* 10^ -3)/(2*10^ -4)`?

Answer 1

`25`

Explanation:

One of the laws of indices deals with negative exponents.

By definition: `x^-m = 1/x^(+m)`

We can change the expression into

`(5 xx 10^4)/(2 xx10^3)`

This simplifies to `(5 xx 10)/2 = 25`