Factor when possible.8x2y2 - 128y2
A. 8y2(x + 4)(x2 - 4x)
B. 8y2(x + 4)(x - 4)
C. y2(x + 4)(8x - 32)
D. Prime
Answer: B
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Provide an appropriate response.
Solve for x by using an equivalent exponential equation: log9 x = 
A. x = 3
B. x = 
C. x = -3
D. x = 
Approximate the expression to the nearest thousandth.
A. -0.2 B. -0.163 C. -0.315 D. -0.178
Determine algebraically whether the function is even, odd, or neither.f(x) = 5x3
A. even B. odd C. neither
Solve the problem.Doctors predict that by administering a vaccine, the number of new cases of a certain childhood disease will decrease by half each year. If 600 people were afflicted with the disease in 2000, estimate the number of new cases in 2005. (Round to the nearest whole number.)
A. 9 new cases in 2005 B. 75 new cases in 2005 C. 38 new cases in 2005 D. 19 new cases in 2005