Final answer:
The simplified form of 8|j|, assuming j is greater than or equal to zero, is simply 8j.
Step-by-step explanation:
To express the simplified form of 8|j|, given that j is greater than or equal to zero, we need to understand the function of the absolute value symbol.
The absolute value of a number is the non-negative value of that number without regard to its sign. Since j is given to be greater than or equal to zero, the absolute value of j (|j|) is simply j itself.
Therefore, the simplified form of 8|j| with j ≥ 0 is 8j.