Factor the four-term polynomial by grouping.x3 + 9x2 + x + 9
A. (9x2 + 9)(x + 1)
B. (x2 + 1)(9x + 9)
C. (x2 + 1)(x + 9)
D. (x2 + 9)(x + 1)
Answer: C
Mathematics
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A. 8n7 B. 15 - 5n5 - 2n2 C. 15n5 - 5n2 - 2 D. -2n5 + 6n2 + 4
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Provide an appropriate response.In a group of 42 students, 22 take history, 17 take biology and 8 take both history and biology. How many students take neither biology nor history?
A. 8 B. 11 C. 5 D. 22
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Graph the function and find the indicated limit.Graph the function f(x) = 
and find 
f(x).
A. 
f(x) does not exist
B. 
f(x) = 2
C. 
f(x) does not exist
D. 
f(x) = -2
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Use the order of operations to simplify the expression.8 ? 22 - 
A. 3
B. 32
C. 31
D. 15
Mathematics