evaluate.\n54 + 3^3 - 13(8 - 6)^2

Explanation:

Step1: Calculate powers and parentheses

First, calculate $3^3 = 27$ and $(8 - 6)^2=2^2 = 4$. The expression becomes $54\div27-13\times4$.

Step2: Do division and multiplication

Calculate $54\div27 = 2$ and $13\times4 = 52$. The expression is now $2-52$.

Step3: Do subtraction

$2 - 52=-50$.

Answer:

$-50$