I cant answer because theres no picture
ANSWER: 1 is a subset of 3,5,7
This is what we know:4x^2 + 12x + c = (2x + k)^2
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4x^2 + 12x + c = 4x^2 + 2kx + 2kx + k^2
c=9
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Answer:
B
Step-by-step explanation:
You can divide the larger number by the smaller number for all of them and see if they all match. If they dont then its not porportional.