4y = y2
4y + 9y2
4y - 9y2
-4y - 9y2
2y + y2
Correct answer is C
(2\(\sqrt{y - 3y}\))(3y = 2y)
= 6y y + 4y - 9y2 - 6y\(\sqrt{y}\)
= 4y - 9y2
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