The Zero Power Rule states that any non-zero number raised to the power of zero is equal to one. Therefore, in the expression \(1^0\):
\[ (-2 + 1)^0 = 0^0 = 1 \quad (\text{Since } -2 + 1 = -1 \text{, and } (-1)^0 = 1) \]
Now substituting this back into the original expression:
\[ \frac{4}{3} \left( -2 + 1^0 \right) = \frac{4}{3}(1) \]
Thus, the expression simplifies to:
\[ \frac{4}{3} \]
So, the equivalent expression is:
\[ \frac{4}{3} \]