Factor completely.-2r2 + 15rt - 7t2
A. (2r - t)(r - 7t)
B. -1(2r - t)(r - 7t)
C. -1(2r + t)(r - 7t)
D. -1(2r + t)(r + 7t)
Answer: B
Mathematics
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B. 
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C. 
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A. - 
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C. - 
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