Find the real solutions of the equation by factoring.3x3 + 2x2 = 12x + 8
A. {-2, 2}
B. 
C. 
D. 
Answer: B
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Evaluate the integral by making a substitution and then using a table of integrals. 
A. 9 sin-1
- 
+ C
B. 
- 3 ln
+ C
C. 9 sin-1
- 
+ C
D. 9 sin-1
+ x
+ C
Solve the given problem by use of the sum of an infinite geometric series.Liquid is continuously collected in a wastewater-holding tank such that during a given hour only 98.0% as much liquid is collected as in the previous hour. If 5.0 gallons are collected in the first hour, what must be the minimum capacity of the tank?
A. 125 gal B. 200 gal C. 250 gal D. 5 gal
Solve.A man earned $3500 the first year he worked. If he received a raise of $600 at the end of each year, what was his salary during the 15th year?
A. $11,900 B. $12,500 C. None of these D. $8400
Find the product of the complex number and its conjugate.
- 2i
A. 
+ 4i
B. 
C. 
D. 
- 4i