This is the answer when written in mixed form if that's what the question meant.
Answer:
First term 
Second term 
Third term 
Step-by-step explanation:
Given,
First term 
Second term 
Third term 
Also,







With the value of
, we conclude that the first three terms are as follows:
First term 
Second term 
Third term 
Answer:

Step-by-step explanation:
Given:
Vertex of the parabola is, 
Equation of the parabola in vertex form is given as:

Plug in
. This gives,

Therefore, the equation of the given graph is
.
Answer:
no
Step-by-step explanation:
If you mean
27^4 - 9^5·3^9 = -1161730026
it has no factors of 5, so cannot be divisible by 25.
__
If you mean ...
(27^4 -9^5)/3^9 = ((3^3)^4 -(3^2)^5)/3^9 = 3^10(3^2 -1)/3^9 = 3(9-1) = 24
it is not divisible by 25, either.