Question

Simplify. Assume that no denominator is equal to zero.
r^6n^-7/r^4n^2

Answer 1

a^b/a^c=a^(b-c)

Answer 2

use the above rule of exponent.

Answer 3

r^6/r^4 becomes r^(6-4)

Answer 4

now do that for n similarly.

Answer 5

n^(-7)/n^2=n^(-7-2)=n^(-9)

Answer 6

so the final answer is the product of r and n;
r^2*n^(-9)

Answer 7

a^-x=1/a^(x)

Answer 8

use the above rule

Answer 9

r^2/n^9 is ur final answer.