Find the open interval(s) where the function is changing as requested.Decreasing; f(x) = x3 - 4x
A. 
B. (-?, ?)
C. 
D. 
Answer: A
Mathematics
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Solve the problem.The sum of twice a number and 14 less than the number is the same as the difference between -22 and the number. What is the number?
A. -3 B. -4 C. -1 D. -2
Mathematics
Solve the equation. Express radicals in simplest form.4x2 - 3x + 8 = 8x + 5
A. 
B. 
C. 
D. 
Mathematics
Decide whether the statement is true or false.
= 
= 
A. True B. False
Mathematics
Solve the quadratic equation and express all nonreal complex solutions in terms of i.x2 = 5x - 10
A. 
B. 
C. 
D. 
Mathematics