Question

Simplify and give answer as positive exponentK618. a) x4.x-7b)k4

Answer 1

b) To simplify the expression, we will use an exponent property

$\frac{a^n}{a^m}=a^{n-m}$

In this case we have that a = k, n = 6 and m = 4.

So we must replace the values,

$\frac{k^6}{k^4}=k^{6-4}=k^2$