Identify the row operation that produces the resulting matrix.
? 
A. (-1)R2 ? R2
B. R1 + (-1)R2 ? R2
C. (-1)R1 + R2 ? R2
D. R1 + (-1)R2 ? R1
Answer: B
Mathematics
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A. 
= 
B. 
= 
C. 
= 
D. 
= 
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)(9 - 
)
A. 36 - 5
+ b
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+ b
C. 36 - 5
- b
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- b
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