Sure! Let's solve the given expression step-by-step with [tex]\( x = 3 \)[/tex]:
The expression we need to evaluate is:
[tex]\[ x^2 - 1 \][/tex]
Step 1: Substitute [tex]\( x = 3 \)[/tex] into the expression.
[tex]\[ 3^2 - 1 \][/tex]
Step 2: Calculate [tex]\( 3^2 \)[/tex].
[tex]\[ 3^2 = 9 \][/tex]
Step 3: Subtract 1 from 9.
[tex]\[ 9 - 1 = 8 \][/tex]
Therefore, the value of the expression when [tex]\( x = 3 \)[/tex] is [tex]\( 8 \)[/tex].
The correct answer is:
D. 8
