Write the simplified expression.

Answer:
343
Step-by-step explanation:
Let's start simplifying with the numerator:
(15-8)⁹
=7⁹
=40353607
Now simplify the denominator :
[(5+2)³]²
=[(7)³]²
=[343]²
=117649
Now combine them :
(15-8)⁹/ [(5+2)³]²
=40353607 / 117649
=343