An expression is taken away from \[3{{x}^{2}}-4{{y}^{2}}+5xy+20\] to obtain \[-{{x}^{2}}-{{y}^{2}}+6xy+20,\]then the expression is ____.

\[2{{x}^{2}}-5{{y}^{2}}+xy+40\]

An expression is taken away from \[3{{x}^{2}}-4{{y}^{2}}+5xy+20\] to o

1.	An expression is taken away from \[3{{x}^{2}}-4{{y}^{2}}+5xy+20\] to obtain \[-{{x}^{2}}-{{y}^{2}}+6xy+20,\]then the expression is ____.
A.	\[4{{x}^{2}}-3{{y}^{2}}-xy\]
B.	\[2{{x}^{2}}-5{{y}^{2}}+xy+40\]
C.	\[3{{y}^{2}}-xy-4{{x}^{2}}\]
D.	\[4{{x}^{2}}+3{{y}^{2}}+xy\]
Answer» B. \[2{{x}^{2}}-5{{y}^{2}}+xy+40\]