Factor by grouping.ay + y - a - 1
A. (y + 1)(a + 1)
B. (y - 1)(a + 1)
C. (y + 1)(a - 1)
D. (y - 1)(a - 1)
Answer: B
Mathematics
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A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
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Add or subtract. Write the answer in lowest terms.
+ 
A. 
B. 
C. 
D. 
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Add.-9 + (-8)
A. -17 B. 17 C. 1 D. -1
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Solve.x2 + 12 < 4x
A. (4, ?) B. (-?, -4) C. ? D. {4}
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