Question

how can I write an equivalent expression using the properties of exponents with 9 to the 4th power times 8 to the 4th power

Answer 1

An equivalent expression to 9 to the 4th power would be:

$9^4=9\cdot9\cdot9\cdot9$

9 to the 4th power means multiply 9, 4 times.

An equivalent expression for 8 to the 4th power, multiply 8, 4 times:

$8^4=8\cdot8\cdot8\cdot8$