Factor by grouping.xy + y + 2x + 2
A. (x + 1)(y + 2)
B. (x + 1)(2y + 2)
C. (x + 2)(y + 1)
D. (2x + 2)(y + 1)
Answer: A
Mathematics
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Determine whether the infinite geometric series has a limit. If a limit exists, find it.2 - 3 + 
- . . .
A. 3
B. 
C. No limit
D. 0
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Establish the identity.1 - 
= - sin u
What will be an ideal response?
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Find the equation that the given graph represents.
A. P(x) = -3x3 - 10x2 + 5x + 12 B. P(x) = x4 - 2x2 - 3x + 12 C. P(x) = 2x3 - 12x2 - 5x - 12 D. P(x) = -3x5 + 2x4 - x2 + 2x - 12
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Find the value(s) of the variable for which the rational expression is undefined.
A. -7 B. 7 C. none D. 0
Mathematics