Question

Which products result in a perfect square trinomial? Check all that apply. (x + 9)(x 9) (xy + x)(xy + x) (2x 3)(3 + 2x) (16 x2)(x2 16) (4y2 + 25)(25 + 4y2)

Answer 1

• 2nd

• 3rd

• 5th

Explanation:

(xy + x)(xy + x)

(16 x2)(x2 16)

(4y2 + 25)(25 + 4y2)

Answer 2

• (xy + x)(xy + x)
• (16 x2)(x2 16)
• (4y2 + 25)(25 + 4y2)

Explanation:

The product of two identical binomial factors will be a perfect square trinomial. The appropriate answer choices are those having both factors the same.