Factor completely.81x2 - 64
A. (9x - 8)2
B. (81x + 1)(x - 64)
C. (9x + 8)(9x - 8)
D. (9x + 8)2
Answer: C
Mathematics
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Mathematics
Solve.25x2 + 80x + 64 = 0
A. - 
B. 
C. - 
, 
D. - 
, 0, 
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Find the number of elements in the indicated set by referring to the given table.The table below shows the results of a poll taken in a U.S. city in which people are asked which candidate they intend to vote for in an upcoming presidential election. 
Find the number of people in the set R' ? (A ? F)
A. 812 B. 929 C. 1224 D. 295
Mathematics
Write the fraction in simplest form. Assume that all variable factors in the denominator are not equal to zero.
A. 
B. 
C. 
D. 
Mathematics