Answer :

sbcardinals

Answer:

25x^2 + 40x + 16

Step-by-step explanation:

(5x + 4)^2

= (5x + 4)*(5x + 4)

= 25x^2 + 20x + 20x + 16

= 25x^2 + 40x + 16

The answer is, in fact, A. I took the test and the answer was correct.

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