To solve is relatively easy. All you need to do is divide both sides by 3 to get the x variable alone.
When you do that what you are left with is x = 4 - 4/3y
1225.
It is also called 35 squared. It is 35X35
The power is how many times you multiply the number by itself.
ANSWER
D.

EXPLANATION
We want to find the expression which is a square of a binomial.
In other words, we want to identify the expression which is a perfect square trinomial.

This expression can be rewritten as,

This is a perfect square trinomial that can be factored as:

This is the square of a binomial.
The correct answer is D