Simplify.6b - 2b + 4
A. 8b + 4
B. -4b + 4
C. 8b
D. 4b + 4
Answer: D
Mathematics
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Use the product rule to simplify the expression. Assume that the variables can be any real number.
A. 3xy
B. -7xy
C. -7xy
D. 7xy
Mathematics
Solve the equation by factoring.x2 - 4 = 0
A. {2} B. {2, -2} C. {-2} D. {4}
Mathematics
Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists.x + y + z=92x - 3y + 4z=7x - 4y + 3z=-2
A. {(- 
+ 
, 
- 
, z)}
B. {(- 
+ 
, 
+ 
, z)}
C. {(
+ 
, 
+ 
, z)}
D. {(
+ 
, 
- 
, z)}
Mathematics
Rewrite using the power and product rules. Assume all variables represent positive real numbers.logb yz8
A. logb y + 8 logb z B. 8 logb yz C. logb y + logb8z D. 8 logb y + 8 logb z
Mathematics