Answer:
simplified expression = 16t⁴ - 40t²u + 25u²
degree = 4
Step-by-step explanation:
The initial expression is:
To simplify, we can solve the expression as:
Applying the distributive property, we get:
Adding the like terms, we get that the simplified expression is
Then, the degree of the simplified expression is 4 because it is the maximum exponent.
So, the answers are:
16t⁴ - 40t²u + 25u²
degree = 4