To solve the expression 3x 2 when x = 5, we first need to clarify the expression.
If we consider 3x 2 to mean 3 times x times 2, we can substitute the value of x. This gives us:
3 * 5 * 2
Now, we can do the multiplication step by step. First, calculate:
3 * 5 = 15
Next, multiply that result by 2:
15 * 2 = 30
So, 3x 2 when x equals 5 is equal to 30.