✎ Problem:

Which of the following is a perfect square trinomial?

• A. x² + 2xy + y²
• B. (x + y) - (3x + 2x)
• C. 2(x + 4) + 3xy
• D. (2x² + 4)

✎ Answer and explanation:

The correct answer is letter A.

✔ A perfect square trinomial is a product of the square of a binomial and is in the form :

• x² + 2xy + y² = (x + y)² and
• x² - 2xy + y² = (x - y)²

In a perfect square trinomial, we can observe the following properties:

1. The first and last terms are perfect squares, like x² and y².
2. The middle term is twice the product of the square roots of the first and last terms, like 2xy.

Hope This Helps

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Answer:

B. (x+y) - (3x + 2x)

Step-by-step explanation:

I think thats the answer