Answer:
well 8-4 equals 4 and 6-5 equals 1
Step-by-step explanation:
The table of 2 is common so
2(x2 - 81)
x2 - 81
Both are squares so
(x - 9)
Answer:
3x+4
Step-by-step explanation:
f(x) = - x+4
Substitute in x=-3x
f(-3x)= - (-3x) + 4 = 3x+4
This is my answer.I hope this is useful.