计算: ( 1 2 ) -2 - ( 2 -1) 0 =______;分解因式:3x 2 y-6xy+3y=______

计算: ( 1 2 ) -2 - ( 2 -1) 0 =______;分解因式:3x 2 y-6xy+3y=______.
2025-03-09 21:50:45
推荐回答(1个)
回答1:

(
1
2
)
-2
- (
2
-1)
0
=2 2 -1=4-1=3;
3x 2 y-6xy+3y=3y(x 2 -2x+1)=3y(x-1) 2
故答案为3、3y(x-1) 2