Question

Multiply or divide as indicated. r 2 • r • r 5

Answer 1

Answer:  The required answer is $r^8.$

Step-by-step explanation:  We are given to multiply of divide as indicated in the following expression :

$E=r^2.r.r^5~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

Here, the indicated operation is multiplication and we will be using the following property of exponents :

$a^x.a^y=a^{x+y}.$

So, from (i), we get

$E\\\\=r^2.r.r^5\\\\=r^{2+1+5}\\\\=r^8.$

Thus, the required answer is $r^8.$

Answer 2

When multiplying variables , the rule is: if the bases are the same,
Keep the base and ADD the powers.
r^2 * r^1 * r^5
Notice that the r with no power written is an assumed power of 1.
r^8 is the answer