Chapter 13.2, Problem 13AR

To determine

To simplify. Use only positive exponents $r^5\cdot r^8$.

Answer to Problem 13AR

The required solution is $r^5\cdot r^8=r^{13}$ .

Explanation of Solution

Given information: The number is $r^5\cdot r^8$ .

Calculation: The required solution is obtained as,

When you multiply two exponents with the same base number, add them.

  $\begin{array}{l}{r}^5\cdot r^8\\ =r^{\left(5+8\right)}\\ =r^{13}\end{array}$

Hence, the required solution is $r^5\cdot r^8=r^{13}$ .