1.

What should be added to \[4{{p}^{2}}+5p+7\] to get\[7{{p}^{2}}+2p+9?\]

A.  \[3{{p}^{2}}-3p+2\]
B.  \[3{{p}^{2}}+3p+2\]
C.  \[-3{{p}^{2}}+3p-2\]
D.  \[3{{p}^{2}}-3p-2\]
Answer» B.  \[3{{p}^{2}}+3p+2\]


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