1.

One of the factors of (\[{{(p+q)}^{2}}-{{(a-b)}^{2}}\]\[+p+q-a+b\] is

A.  \[(p+q+a+b)\]         
B.  \[(p+q-a+b)\]
C.  \[(p-q+a-b)\]
D.         \[(p-q+a+b)\]
Answer» C.  \[(p-q+a-b)\]


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