方程（x-3）2=4的解是______．_爱下问搜题

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问题填空题

方程（x-3）²=4的解是______．

答案

（x-3）²=4

x-3=±2

x=3±2，

∴x₁=1，x₂=5．

故答案是：x₁=1，x₂=5．

选择题

给下列的问句选择合适的答语。

( ) 1. I like books.
( ) 2. What did you buy yesterday?
( ) 3. What does Santa always say?
( ) 4. What would you like for Christmas?
( ) 5. What do you want to buy?
( ) 6. How do you do?

A. Merry Christmas.
B. I want to buy something special.
C. I bought a toy.
D. How do you do?
E. I'd like a new pencil case.
F. Me, too.

填空题

农业政策制定的直接主体有（）、（）、（）、（）。