Hi!
1. -25
2. 22
3. 0
4. -34.5
hope this helps!
Answer:
All real numbers
Step-by-step explanation:
Answer:

Step-by-step explanation:

Answer:
f(x)=(x-6)(x-(-7))
Step-by-step explanation:
Foiled:
0 = x + x - 42
Step-by-step explanation:
a).
n! is

(n-3)! is

If we divide the two, everything behind (n-3) will just cancel out so we would be left with only

So the answer to a is

b
Permutations formula of P(6,4) is
6!/(6-4)!, or 6!/2!.

Then we divide by 4!

The answer to b is 15