把方程x2+6x+3=0变形为（x+h）2=k的形式，其中h，k为常数，则k=_1．_刷题宝

题干

把方程x²+6x+3=0变形为（x+h）²=k的形式，其中h，k为常数，则k=____．

上一题下一题 0.0难度选择题更新时间:2020-03-03 01:08:41

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同类题1

阅读理解。

I like school days. I can learn many things from school. We have four classes in the morning and two in the afternoon. I like weekends, too. We don't go to school on Saturdays and Sundays. I often play ping-pong and play basketball on Saturday morning. I often play the violin (小提琴) on Saturday afternoon. I often do homework and play football on Sunday morning. I often go to the park on Sunday afternoon.

同类题2

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同类题3

根据下面提供的情境，按要求回答问题。

同类题4

某实验小组的同学们利用下图装行研究Na₂O₂与干燥CO₂是否发生反应。（部分夹持仪器略去）请回答下列问题。

同类题5

化简：x(x²+x-1)-(2x²-1)(x-4)

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