Question

question 11 (1 point) evaluate the expression $3x + 3^2$ if $x = 3$. 18 42 15 12

Explanation:

Step1: Substitute x = 3 into the expression

First, we substitute \( x = 3 \) into the expression \( 3x + 3^2 \). So we get \( 3\times3 + 3^2 \).

Step2: Calculate each term

Calculate \( 3\times3 = 9 \) and \( 3^2 = 9 \).

Step3: Add the results

Now we add the two results together: \( 9 + 9 = 18 \).

Answer:

18