题目内容
| 下列分解因式正确的是 |
A x2-2x+1=x(x-2)+1 B x2-4xy+4y2 =（x-2y）2 C (x+5)(x-5)=x2-25 D x2+y2=(x+y)(x-y) |
试题答案
B
相关题目
| 下列分解因式正确的是 |
|
[ ] |
| A x2-2x+1=x(x-2)+1 B x2-4xy+4y2 =（x-2y）2 C (x+5)(x-5)=x2-25 D x2+y2=(x+y)(x-y) |
题目内容
| 下列分解因式正确的是 |
A x2-2x+1=x(x-2)+1 B x2-4xy+4y2 =（x-2y）2 C (x+5)(x-5)=x2-25 D x2+y2=(x+y)(x-y) |
试题答案
B| 下列分解因式正确的是 |
|
[ ] |
| A x2-2x+1=x(x-2)+1 B x2-4xy+4y2 =（x-2y）2 C (x+5)(x-5)=x2-25 D x2+y2=(x+y)(x-y) |