To use the Power Rule of Exponents, we apply the rule that states \(a^m \cdot a^n = a^{m+n}\).
In your expression \((156)^2\), we see that it can be broken down as follows:
\[ (15^1 \cdot 6^1)^2 = 15^{2 \cdot 1} \cdot 6^{2 \cdot 1} = 15^2 \cdot 6^2 \]
This expression does not seem to follow the options directly provided, but if we interpret that we are only needing to express \(156\) in terms of \(15\) without breaking it down into different bases or components, we notice that \(156\) alone to the power of \(2\) indicates that the immediate answer could be questioning the simplification of the statement itself rather than entirely breaking it down as provided.
It appears that none of the provided options such as \(154\), \(15^4\), \(15^3\), \(15^{12}\), or \(15^8\) is directly equivalent to \((156)^2\) in power; however, if looking strictly for a result based on possible corrections or reductions leading to similar structures on impact, \(15^8\) has no relation.
The clarified direct interpretation would lead to:
\((156)^2\) could mathematically revisit to \(15 * 6)^2\); hence, leading to some confusion in association joints of the base.
Clarifying more on this, the more correct direct exponent would yield:
\[ \text{Therefore, if we take expression as is } (156)^2 = 156 \times 156 \]
To answer based thoroughly, more options and contextual scenarios could derive clearly derivative factors:
- Looking back, if intended rectified workings kept toward masses, correcting could yield simpler forms.
Ultimately, since specific numerical equivalents were provided directly needing to clarify divergent paths, revisiting exact phrased numbers in terms always will matter aside derivative multiplicands forming to equate. Please let me know if further specifics on choices or transformations are needed!