Question

1. $2×3^{2}-5$

Explanation:

Step1: Calculate the exponentiation

First, we need to calculate \(3^2\). According to the definition of exponentiation, \(3^2 = 3\times3 = 9\).

Step2: Perform the multiplication

Next, we multiply 2 by the result of the exponentiation. So, \(2\times9 = 18\).

Step3: Perform the subtraction

Finally, we subtract 5 from the result of the multiplication. That is, \(18 - 5 = 13\).

Answer:

13