Multiply.
? 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Factor by grouping.3xy + 6x + 7y + 14
A. (3x + y)(7y + 2) B. (3x + 7y)(y + 2) C. (3x + 7)(y + 2) D. (3x + 2)(y + 7)
Mathematics
Find the exact value by using a difference identity.tan 285°
A. 
B. -2 - 
C. 
D. 2 + 
Mathematics
Find the LCD for the list of rational expressions.
, 
A. -2(x - 5)(x + 3) B. -2(x - 5)(x - 3) C. -2(x + 5)(x + 3) D. -2(x + 5)(x - 3)
Mathematics
Express the sum using summation notation.3 + 6 + 9 + ... + 21
A. 
B. 
C. 
D. 
Mathematics