Find the product.6 ? (-9k2)
A. -54 + k2
B. 6 - 9k2
C. -54k2
D. -15k2
Answer: C
Mathematics
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Find the domain of the function.f(x) = 
A. (-?, 0) or (0, ?) B. (-?, ?) C. (-?, -6) or (-6, ?) D. (-?, -6)
Mathematics
Factor the binomial completely.50a4b - 18b3
A. 2b(5a2 + 3b)(5a2 - 3b) B. (10a + 6b)(5ab - 3b2) C. 2b(5a + 3b)2 D. 2b(5a - 3b)2
Mathematics
Solve the system. If the system has infinitely many solutions, write the solution set with x arbitrary.8x + 4y = 716x + 8y = 5
A. 
B. {(0, 0)}
C. 
D. ?
Mathematics
Solve the equation.
2 + 
= 6
A. {-6, 1}
B. 
C. 
D. {-4, 3}
Mathematics