Question

How do you simplify `4^-2`?

Answer 1

To simplify use the exponent rule: `x^color(red)(a) = 1/x^color(red)(-a)`

`4^color(red)(-2) = 1/4^color(red)(- -2) = 1/4^2 = 1/(4 xx 4) = 1/16 = 0.0625`