1.

What is the solution of \[{{(x+4)}^{2}}-{{(x-5)}^{2}}=9\]?

A.  \[x=1\]               
B.                         \[x=2\]               
C.                         \[x=3\]               
D.                         \[x=4\]
Answer» B.                         \[x=2\]               


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