Determine which polynomial is a perfect square trinomial.
2 answers:
Answer:
D) 16x^2 − 56x + 49
Step-by-step explanation:
It is 16x^2 - 56x + 49
(4x)^2 - 2*4x*7 + 7^2
This is in the form of (a - b)^2 = a^2 - 2ab + b^2
Here a = 4x and b = 7
(4x)^2 - 2*4x*7 + 7^2 = (4x - 7)^2
Therefore, answer is D) 16x^2 − 56x + 49
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