Simplify t raised to the power -4. (t-4)

3r-5.
s-3/t-5

t^-4 = 1/t^4

Not much can be done to simplify that.
Similarly with the others.
Be sure to use the ^ for powers, os we confuse

3^-2 = 1/9
with
3-2 = 1

i have a problem that says 7C 6squared divided by 7c and i don't know how to solve it.

To simplify the given expression, we will go through each part step by step:

1. Simplify t raised to the power -4:
When a number or variable is raised to the power of -n, it means you need to take its reciprocal and then raise it to the power of n. Therefore, t^(-4) is equal to 1 / t^4.

2. Simplify (t-4):
(t-4) is already simplified, so there's nothing else to be done.

3. Simplify 3r-5:
The expression 3r-5 is already simplified, so no further simplification is needed here.

4. Simplify (s-3)/(t-5):
The given expression (s-3)/(t-5) is a fraction and cannot be simplified further unless specific values for s and t are provided.

Therefore, simplified expressions are:
t raised to the power -4: 1 / t^4
(t-4): remains as (t-4)
3r-5: remains as 3r-5
(s-3)/(t-5): remains as (s-3)/(t-5)