问题
填空题
x2-3x+______=(x-______)2.
答案
∵3x=2×
•x,3 2
∴x2-3x+(
)2=x2-3x+3 2
=(x-9 4
)2.3 2
x2-3x+______=(x-______)2.
∵3x=2×
•x,3 2
∴x2-3x+(
)2=x2-3x+3 2
=(x-9 4
)2.3 2
选词填空:选择方框里的单词或词组并用其恰当形式填空,使句子完整,句意通顺。 | |
1. — Put that bag in its _____ place, and we can find it easily next time. |