The question is:
Evaluate 6t−20−32u when t=6 and u=1/4
Answer:
8
Explanation:
The given expression is:

We need to evaluate the expression for the given values of t and u. Substituting t=6 and u=1/4 in the above expression we get:

Thus, the give expression is equal to 8 for t=6 and u=1/4