Factor the trinomial completely. If the trinomial cannot be factored, say it is prime.x2 + 3xy - 28y2
A. (x - 7y)(x + y)
B. (x + 7y)(x - 4y)
C. (x - y)(x + 4y)
D. (x - 7y)(x + 4y)
Answer: B
Mathematics
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A. m = 
B. m = 
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A. 
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?
?
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E. 
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