Question

y 7 • y 9

Multiply or divide as indicated.

Answer 1

For this case we have the following expression:

$y^ 7 * y^ 9 =$

By definition of multiplication of powers of the same base, we have to put the same base and add the exponents, that is:

$a ^ n * a ^ m = a ^ {n + m}$

So:

$y ^ 7 * y ^ 9 = y ^{7 + 9} = y ^ {16}$

Answer:

$y^{16}$