<h3>
Answer:</h3>
See the attached
<h3>
Step-by-step explanation:</h3>
When you square the binomial (a -b), you get ...
... (a -b)² = a² -2ab +b²
That is, both the a² and b² terms have positive signs, and the middle term is twice the product of the roots of the squared terms.
The last two selections have negative signs on the constant, so cannot be perfect square trinomials.
The first selection has a middle term that is -ab, not -2ab, so it is not a perfect square trinomial, either.
The second selection is the correct one:
... 4a² -20a +25 = (2a +5)²
4136/8= 517
The others
7116/8=889.5
4309/8=538.625
9406/8=1175.75
I actually don't know it's kinda of confusing I'm sorry I'm just tired I'll give you the answer when I get it.
Its either A or C they both have the same spot when it is graphed.