Answer:
19 m
Step-by-step explanation:
This is Geometric progression with

Then the fomular of sum is

There are no common factors, therefore, it can't be factored. My advice would be to try simplifying and then try factoring. Because this you can't factor.
Answer:
C
Step-by-step explanation:
Answer:
-14+63x²
Step-by-step explanation:
(sot)=s(tx)
=s(3x)
=2-(3x)²
=2-9x²
(sot)(-7)=-7(2-9x²)
=-14+63x²
I hope I helped
and of I am correct mark my answer as brainliest
The answer to this question is D. 6 :)