
<h2>
Explanation:</h2>
Here we have the following expression:

A Perfect Square Trinomial is given by the form:

So matching terms, we can conclude that:

So, substituting c into the expression:

It is a perfect square because:

<h2>Learn more:</h2>
Quadratic Equation in real life problems: brainly.com/question/10278062
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It should be y=x Good luck!
25 - 6x - 12 - 2x
Combine like terms:
-6x - 2x = -8x
25 - 12 = 13
So we have:
-8x + 13