Simplify the expression. Use positive exponents. Assume variables represent nonzero real numbers.
A. 8x2
B. 6x2
C. 4x2
D. 4x-2
Answer: C
Mathematics
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Perform the indicated operation. Simplify your answers. 
+ 
A. 
B. 
C. 
D. 
Mathematics
Write as a percent.0.928
A. 0.0928% B. 928% C. 0.928% D. 92.8%
Mathematics
Multiply.(x2 - x - 8)(x - 1)
A. x3 - 2x2 - 9x - 8 B. x3 - 7x + 8 C. x3 - 2x2 - 8x + 8 D. x3 - 2x2 - 7x + 8
Mathematics
Solve the system of equations using elimination.
A. x = 6, y = 5; x = 5, y = 6; x = -6, y = -5; x = -5, y = -6 B. x = 6, y = -5; x = 6, y = 5 C. x = 6, y = 5; x = -6, y = 5; x = 6, y = -5; x = -6, y = -5 D. x = -6, y = -5; x = -5, y = -6
Mathematics