Multiply.(8x + 9y)(8x- 9y)
A. 64x2 + 81y2
B. 64x2 - 72xy + 81y2
C. 64x2 - 81y2
D. 64x2 - 72xy - 81y2
Answer: C
Mathematics
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A. ?
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D. ?
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E. ?
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