Answer:

Step-by-step explanation:
1) rewrite 60 as it's prime factors.

2) group the smae prime factors into pairs.

3) Rewrite each pair in exponent form.

4) use this role:


5) Simplify.

So, therefor, the answer is option 1.
Answer:
n=4
Step-by-step explanation:
The factors are -70 and 41
-70 x 41 = -490
-70 + 41 = -21
Hope this helps!
Answer:
3n-7
Step-by-step explanation: