1/5单选题
难度：
1.
将多项式x2-3x-4分解因式，结果是（ ）
| A | （x-4）（x+1） |
| B | （x-4）（x-1） |
| C | （x+4）（x+1） |
| D | （x+4）（x-1） |
- 提示1：
- PHA+6L+Q55So5Y2B5a2X55u45LmY5rOVPC9wPg==
正确答案：QQ==
PGRpdj7op6PvvJp4PHN1cD4yPC9zdXA+LTN4LTQ977yIeCsx77yJ77yIeC0077yJLjxicj7mlYXpgIlBLjwvZGl2Pg==
2/5单选题
难度：
2.
分解因式：
=（ ）
| A | (x＋1)(x－1)(x＋3)(x－3) |
| B | (x＋1)(x+1)(x＋3)(x－3) |
| C | (x＋1)(x+1)(x＋3)(x+3) |
| D | (x＋1)(x－1)(x＋3)(x+3) |
- 提示1：
- PHA+PGltZyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzI0L0M5L3JCQUNFMU1OV0VHQ1hiNjFBQUFCVXltY1J6YzM2Ny5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMjQvQzkvckJBQ0UxTU5XRUdDWGI2MUFBQUJVeW1jUnpjMzY3LnBuZyIgaGVpZ2h0PSIyMiIgd2lkdGg9IjIwIj7nnIvkvZzkuIDmlbTkvZM8L3A+
- 提示2：
- PHA+6L2s5YyW5Li65YWz5LqOPGltZyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzI0L0M5L3JCQUNFMU1OV0VHQ1hiNjFBQUFCVXltY1J6YzM2Ny5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMjQvQzkvckJBQ0UxTU5XRUdDWGI2MUFBQUJVeW1jUnpjMzY3LnBuZyIgaGVpZ2h0PSIyMiIgd2lkdGg9IjIwIj7nmoTkuozmrKHkuInpobnlvI/vvJs8L3A+
正确答案：QQ==
PGRpdj48Yj7op6PvvJo8L2I+PGI+PGltZyBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzAxL0Q4L3JCQUNGRk1OV0VIRHJSVFlBQUFEaEJtMFhzODcyMi5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMDEvRDgvckJBQ0ZGTU5XRUhEclJUWUFBQURoQm0wWHM4NzIyLnBuZyIgaGVpZ2h0PSIyNSIgd2lkdGg9IjE5NiI+PC9iPjwvZGl2PjxkaXY+77ydKDxpPng8L2k+77yLMSkoPGk+eDwvaT7vvI0xKSg8aT54PC9pPu+8izMpKDxpPng8L2k+77yNMykuPC9kaXY+
3/5单选题
难度：
3.
分解因式：
=( )
| A |
|
| B |
|
| C |
|
| D |
|
- 提示1：
- PHA+5oqKPGltZyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzAxL0Q4L3JCQUNGRk1OV0VhZ3RmM0VBQUFCem1Id2VMVTU5My5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMDEvRDgvckJBQ0ZGTU5XRWFndGYzRUFBQUJ6bUh3ZUxVNTkzLnBuZyIgaGVpZ2h0PSIyMiIgd2lkdGg9IjUyIj7nnIvkvZzkuIDkuKrlj5jph4/vvIzliKnnlKjmjaLlhYPms5Xop6PkuYs8L3A+
- 提示2：
- PHA+6K6+PGltZyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzAxL0Q4L3JCQUNGRk1OV0ViQVd0TnFBQUFDUTN4SnJZWTg4Ny5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMDEvRDgvckJBQ0ZGTU5XRWJBV3ROcUFBQUNRM3hKcllZODg3LnBuZyIgaGVpZ2h0PSIyNSIgd2lkdGg9Ijc3Ij48L3A+
正确答案：RA==
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
4/5单选题
难度：
4.
分解因式
=( )
| A |
|
| B |
|
| C |
|
| D |
|
- 提示1：
- PHA+5oqKPGk+eTwvaT7nnIvkvZzmmK/luLjmlbA8L3A+
- 提示2：
- PHA+6L2s5YyW5Li65YWz5LqOPGk+eDwvaT7nmoTkuozmrKHkuInpobnlvI88L3A+
正确答案：Qg==
PGRpdj7op6PvvJo8aW1nIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMjQvQzkvckJBQ0UxTU5XRXJoOFJGbUFBQURWalNkU2xjODU5LnBuZyIgZGF0YS1ja2Utc2F2ZWQtc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8yNC9DOS9yQkFDRTFNTldFcmg4UkZtQUFBRFZqU2RTbGM4NTkucG5nIiBoZWlnaHQ9IjI1IiB3aWR0aD0iMTcyIj48L2Rpdj48ZGl2PjxpbWcgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8wMS9EOS9yQkFDRkZNTldFdmhoMXpSQUFBRHN4ZUJSX2MxNTYucG5nIiBkYXRhLWNrZS1zYXZlZC1zcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzAxL0Q5L3JCQUNGRk1OV0V2aGgxelJBQUFEc3hlQlJfYzE1Ni5wbmciIGhlaWdodD0iMjUiIHdpZHRoPSIxODkiPjwvZGl2PjxkaXY+PGltZyBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzAxL0Q5L3JCQUNGRk1OV0V5ekxWMkpBQUFFRUMzQnBUSTY5OC5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMDEvRDkvckJBQ0ZGTU5XRXl6TFYySkFBQUVFQzNCcFRJNjk4LnBuZyIgaGVpZ2h0PSIyNSIgd2lkdGg9IjIwMiI+PC9kaXY+PGRpdj48aW1nIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMjQvQzkvckJBQ0UxTU5XRTJUN3pBbEFBQURLQk9YVHQ0MjI3LnBuZyIgZGF0YS1ja2Utc2F2ZWQtc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8yNC9DOS9yQkFDRTFNTldFMlQ3ekFsQUFBREtCT1hUdDQyMjcucG5nIiBoZWlnaHQ9IjIyIiB3aWR0aD0iMTYwIj48L2Rpdj48ZGl2Pu+8nSg8aT54PC9pPu+8jTxpPnk8L2k+77yNNikoPGk+eDwvaT7vvI08aT55PC9pPu+8izEpLjwvZGl2Pg==
5/5单选题
难度：
5.
分解因式：ca(c－a)＋bc(b－c)＋ab(a－b)＝（ ）
| A | (a－b)(c－a)(c－b) |
| B | (a+b)(c－a)(c－b) |
| C | (a－b)(c+a)(c－b) |
| D | (a+b)(c－a)(c+b) |
- 提示1：
- PHA+5YWI5bCG5YmN6Z2i55qE5Lik5Liq5ous5Y+35bGV5byAPC9wPg==
- 提示2：
- PHA+5YaN5bCG5bGV5byA55qE6YOo5YiG6YeN5paw5YiG57uEPC9wPg==
- 提示3：
- PHA+5qC55o2u5a2X5q+NPGk+YzwvaT7nmoTmrKHmlbDliIbnu4TvvIzlh7rnjrDkuoblkKs8aT5hPC9pPu+8jTxpPmI8L2k+55qE5Zug5byP5LuO6ICM6IO95o+Q5YWs5Zug5byP77yM5Zyo6L+Q55So5Y2B5a2X55u45LmY5rOV44CCPC9wPg==
正确答案：QQ==
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