Answer :
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.
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.