已知x、y是实数，且满足（x+4）2+|y-1|=0，则x+y的值是______

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问题填空题

已知x、y是实数，且满足（x+4）²+|y-1|=0，则x+y的值是______．

答案

∵（x+4）²+|y-1|=0，

∴x+4=0，y-1=0，

即x=-4，y=1．

故x+y=-4+1=-3．

填空题

已知函数f(x)=log_ax(a＞0，a≠1)，若f(x₁)-f(x₂)=3，则f(x₁²)-f(x₂²)=（）。

句型转换

根据所给提示，完成句子。每空一词，含缩略词。

小题1:Li Lianjie set up an organization to help the poor．(改为否定句)

Li Lianjie ____________ ____________ up an organization to help the poor．

小题2:Some teenagers are playing computer games in the game hall．(对划线部分提问)

____________ ____________ some teenagers playing computer games，

小题3:Shall we go to the swimming pool?(改为同义句)

____________ ____________ going to the swimming pool?

小题4:当他醒来时，他妈妈正站在她身边。(完成译句)

When he ____________ ____________,his mother was standing close to him．

小题5:My father gave me a toy on my birthday．(改为被动句)

A toy ____________ ____________ to me by my father on my birthday．