Question

NEED HELP!!!! Which polynomial is factored completely?

Answer 1

Answer:

A. 121x^2 + 36y^2

Step-by-step explanation:

The first choice is a sum of two squares. A sum of two squares cannot be factored.

All other polynomials can be factored further.

Answer 2

Answer:

121x^2 + 36y^2

Step-by-step explanation:

This is factored completely because nothing further can be done unlike the other choices as they can be simplified further.

(4x + 1)(x + 1) = 4(x + 1)^2

2x(x^2 - 4) = 2x(x + 2)(x - 2)

3x^4 - 15n^3 + 12n^2 = 3x^4 - 3y^2 (5y - 4)