Heyy! please help posted picture of question
2 answers:
Hey there :)
We know that √4 = 2
Therefore,

Breaking √28, the factors of 28 are 4 and 7, 2 and 14. In these the first pair has a perfect square root
So,

2 and 2 cancels out leaving us with √7
Which means,
A and D are true
good luck
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