Factor using the ac-method.9y4 - 6y2 - 8
A. (3y - 2)(3y + 4)
B. (3y2 - 4)(3y2 + 2)
C. (3y2 + 1)(3y2 - 8)
D. (9y2 - 4)(y2 + 2)
Answer: B
Mathematics
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