Add or subtract as indicated. Write your answer in the form a + bi.(8 - 4i) + (4 + 8i)
A. 12 + 4i
B. -12 - 4i
C. 12 - 4i
D. 4 + 12i
Answer: A
Mathematics
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Give all possible rational zeros for the polynomial.f(x) = 3x3 + 31x2 + 31x + 27
A. ±1, ±3, ±6, ±9, ±27
B. ±1, ± 
, ± 
, ± 
, ±3
C. ±1, ±3, ±9, ±27
D. ±1, ± 
, ±3, ±9, ±27
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Use absolute value notation to define the interval shown below.
a. 
b. 
c. 
d. 
e. 
Mathematics
Factor the special products, which are the sum or difference of two perfect cubes.729c3 + 125
A. (9c + 5)(81c2 - 45c + 25) B. (9c - 5)(81c2 + 45c + 25) C. (9c + 5)(81c2 + 25) D. (729c + 5)(c2 - 45c + 25)
Mathematics
Solve for x using an equivalent exponential expression.log5 x = -2
A. -10
B. -25
C. 32
D. 
Mathematics