Question

Rewrite the expression without using a negative exponent. -5x^-4

Answer 1

For this case we have that by definition of power properties it is fulfilled that:

$a ^ {-1} = \frac {1} {a ^ 1} = \frac {1} {a}$

So, if we have the following expression:

$-5x^{-4}$

We can rewrite it as:

$\frac {-5} {x ^ 4} = - \frac {5} {x ^ 4}$

Answer:

$- \frac {5} {x ^ 4}$