Pretty sure the answer is 8
Answer:
287.9
Step-by-step explanation:
4 or less let it rest 5 or more add one more
A²-169b² = a²-(13b)² --> difference of two squares
a²-(13b)² = (a-13b)(a+13b)
Answer:

Step-by-step explanation:




the value of
is
.
Hope this helps :)