Binomial theorem:

The

term corresponds with the term in the sum for which

. For this

, we get

So the coefficient you want to find is
Answer:
x = 5
Step-by-step explanation:
A by B is simply 
3 by x + 1 is
5 by 2x is
So, the equality is ;
=
Cross multiply and solve the inequality;
3(2x) = 5(x + 1)
6x = 5x + 5
6x -5x = 5
x = 5
Answer: the answer should be 95
Step-by-step explanation: