3. Why was the Aztec Empire unstable?

The Aztec Empire grew as it conquered neighboring states, but that growth came at a cost. ... During the time of Montezuma II's reign the empire was at its peak, but so was the resentment of the subject tribes. Constant rebellions were waged. Although Montezuma defeated the rebellions, they weakened the empire.

Explanation:▶CREDIT/SOURCE◀

https://www.britannica.com/summary/Decline-of-the-Aztec-Empire

answer

explanation

the given equation is

we can rewrite this as:

let

then the equation becomes:

the factors of 8 that sum up to -9 are {-1,-8}

we split the middle term with these factors to obtain,

we factor by grouping to obtain:

apply the zero product property to get:

but