Factor completely.729y3 - 343
A. (9y - 7)(81y2 + 63y + 49)
B. (9y - 7)3
C. (9y + 7)(81y2 - 63y + 49)
D. (9y - 7)(81y2 + 49)
Answer: A
Mathematics
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A. $1600 B. $1400 C. $1700 D. $1500
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Perform the indicated operations.[(6x + 4) + 8y]2
A. 36x2 + 48x + 96xy + 64y + 64y2 B. 36x2 + 48x + 16 + 96xy + 64y + 64y2 C. 36x2 + 24x + 16 + 48xy + 32y + 64y2 D. 36x2 + 96xy + 64y2
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Multiply or divide as indicated. Write the answer in lowest terms.
÷ 
A. 
B. z - 9
C. 
D. 
Mathematics
Simplify the expression.
A. cot2 ? B. sin2 ? C. cos2 ? D. csc ?
Mathematics