Use the quadratic formula to solve the equation.x2 + 18x + 71 = 0
A. {-18 + 
}
B. {-9 - 
, -9 + 
}
C. {9 + 
}
D. {9 - 
, 9 + 
}
Answer: B
Mathematics
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Find z1z2. Write the answer in polar form with the argument between 0° and 360°.z1 = 1 - 
i, z2 =2 - 2i
A. 4
(cos 345° + i sin 345°)
B. (2 + 2
)(cos 255° + i sin 255°)
C. 4
(cos 255° + i sin 255°)
D. 4(cos 345° + i sin 345°)
Mathematics
Factor the expression by removing the greatest common factor.10m7 - 18m5 + 10m3
A. m3(10m4 - 18m2 + 10) B. 2m3(5m4 - 9m2 + 5) C. 2(5m7 - 9m5 + 5m3) D. No common factor
Mathematics
Find the partial fraction decomposition for the rational expression.
A. 
+ 
- 
B. 
- 
- 
C. 
+ 
+ 
D. 
+ 
- 
Mathematics
Determine the sum of the series 
.
A. 
B. 
C. 
D. none of these
Mathematics