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(山西临汾)若实数x、y满足:(x+y)(x+y-3)+2=0,则x+y的值为
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A.-1或-2
B.-1或2
C.1或-2
D.1或2
若实数x、y满足(x+y+2)(x+y-1)=0,则x+y的值为( ).
A.1
B.-2
C.2或-1
D.-2或1