1.

A The length of a rod is \[4x+5y-3z\,cm\] and the length of another is\[6x-3y+z\text{ }cm\]. By how much is the second rod longer than the first?

A.   \[2x+8y+4z\]
B.  \[2x-8y-4z\]
C.  \[2x+8y-4z\]
D.   \[2x-8y+4z\]    
Answer» E.


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