(X2)7

It looks like you're asking about the expression \((X^2)^7\). To simplify this expression, you can use the power of a power property in exponents, which states that \((a^m)^n = a^{m \cdot n}\).

Applying this property, we have:

\[ (X^2)^7 = X^{2 \cdot 7} = X^{14} \]

So, \((X^2)^7\) simplifies to \(X^{14}\).