Question

What is the simplified form of the following expression? (n^5)(n^2)
a. n^25
b. n^10
c. n^7
d. n^3

Answer 1

remember the exponential law that says
$( x^{m}) (x^{n})=x^{m+n}$
therefor
 $( n^{5}) (n^{2})=x^{5+2}=x^{7}$

the answer is C