中学生网络课堂本课配套习题挑战模式1/6
单选题
难度系数：
1.解方程3（x-3）2-24=0，得方程的根是（ ）
A:  |
B:  |
C:  |
D:  |
一次做对，真牛！
+5奖励规则>
- 提示1：IOWFiOenu+mhueOAgeW5tuS4lOezu+aVsOWMljE=
- 提示2：IOWImeWPr+WPmOW9ouS4uu+8iHgtM++8iTxzdXA+Mjwvc3VwPj0477yM
- 提示3：IOeEtuWQjuW8gOaWue+8jOaxguWHungtM+eahOWAvO+8jOi/m+iAjOaxgngu
- 答案：Qw==
PGRpdj7op6PvvJrnp7vpobnlvpfvvIwz77yIeC0z77yJPHN1cD4yPC9zdXA+PTI077yM5Lik6L655ZCM6ZmkM+W+l++8jO+8iHgtM++8iTxzdXA+Mjwvc3VwPj0477yMPC9kaXY+PGRpdj7lvIDmlrnlvpfvvIw8aW1nIHdpZHRoPTg4IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0ZDLzY5L3JCQUNGRk1KdUJqeUpWWlBBQUFDRlM1SmsxMDc4Ni5wbmciPu+8jOaJgOS7pTxpbWcgd2lkdGg9MTc5IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzFGLzUwL3JCQUNFMU1KdUJpQmFQUG9BQUFDdVY2azJJYzg2Ni5wbmciPjwvZGl2PjxkaXY+5pWF6YCJQzwvZGl2Pg==
本课配套习题挑战模式2/6
单选题
难度系数：
2.若一元二次方程式x2-2x-3599=0的两根为a、b，且a＞b，则2a-b之值为何？（ ）
| A: -57 |
| B: 63 |
| C: 179 |
| D: 181 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOWFiOWIqeeUqOmFjeaWueazleaxguWHuuatpOaWueeoi+eahOS4pOaguQ==
- 提示2：IOWGjeWIqeeUqGHvvJ5i77yM56Gu5a6aYSxi55qE5YC8
- 提示3：IOWGjeS7o+WFpTJhLWLmsYLlh7rljbPlj68u
- 答案：RA==
PGRpdj7op6PvvJp4PHN1cD4yPC9zdXA+LTJ4LTM1OTk9MO+8jDxicj7np7vpobnlvpfvvJp4PHN1cD4yPC9zdXA+LTJ4PTM1OTnvvIw8YnI+eDxzdXA+Mjwvc3VwPi0yeCsxPTM1OTkrMe+8jDxicj7ljbPvvIh4LTHvvIk8c3VwPjI8L3N1cD49MzYwMO+8jDxicj54LTE9NjDvvIx4LTE9LTYw77yMPGJyPuino+W+l++8mng9NjHvvIx4PS01Oe+8jDxicj7iiLXkuIDlhYPkuozmrKHmlrnnqIvlvI94PHN1cD4yPC9zdXA+LTJ4LTM1OTk9MOeahOS4pOagueS4umHjgIFi77yM5LiUYe+8nmLvvIw8YnI+4oi0YT02Me+8jGI9LTU577yMPGJyPuKItDJhLWI9MsOXNjEt77yILTU577yJPTE4Me+8jDxicj7mlYXpgIlELiA8L2Rpdj4=
本课配套习题挑战模式3/6
单选题
难度系数：
3.方程（x-1）（x-2）=1的根是（ ）
| A: x1=1，x2=2 |
B:  |
| C: x1=0，x2=3 |
| D: 以上都不对 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOWboOS4uuaWueeoi+etieW8j+W3pui+ueS4ujHvvIzmiYDku6XpppblhYjpnIDopoHmiornrYnlvI/lt6bovrnlsZXlvIA=
- 提示2：IOS5i+WQjumAmui/h+enu+mhueWSjOWQiOW5tuWQjOexu+mhue+8jOWwhuaWueeoi+i9rOaNouaIkOagh+WHhuW9ouW8jzxpbWcgd2lkdGg9MTA0IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzFGLzUxL3JCQUNFMU1KdURUUWczUzZBQUFDTmd2cUhhYzExOC5wbmciPg==
- 提示3：IOWGjeinguWvn+W9ouWKv+mAieaLqeWQiOmAgueahOaWueazleaxguinow==
- 答案：RA==
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
本课配套习题挑战模式4/6
单选题
难度系数：
4.方程x2-5x-6=0的两根为（ ）
A: 6和 |
B:  |
C:  |
D: 2 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOinguWvn+W9ouWKv++8jOWPr+mAieaLqeeUqOWNgeWtl+ebuOS5mOazleaxguinow==
- 提示2：IOWPr+WwhuW4uOaVsOmhuTxpbWcgd2lkdGg9MTggaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvRkMvNkEvckJBQ0ZGTUp1RGlDeGJtWEFBQUJLaWJqMUxrMDU4LnBuZyI+5YiG6Kej5Li6PGltZyB3aWR0aD00MiBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8xRi81MS9yQkFDRTFNSnVEano3ZkFIQUFBQmVVWWpjSUE5MzkucG5nIj7vvIznlKjljYHlrZfnm7jkuZjms5XvvIzljbPlj6/msYLlvpfop6M=
- 答案：QQ==
PGRpdj7op6PvvJp4PHN1cD4yPC9zdXA+LTV4LTY9MDxicj7vvIh4LTbvvInvvIh4KzHvvIk9MDxicj7op6Plvpd4PTbmiJYtMS4gPGJyPuaVhemAiUE8L2Rpdj4=
本课配套习题挑战模式5/6
单选题
难度系数：
5.解方程2（5x-1）2=3（5x-1）的最适当的方法是（ ）
| A: 直接开平方法 |
| B: 配方法 |
| C: 公式法 |
| D: 分解因式法 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOagueaNruetieW8j+S4pOi+uemDveaciTxpbWcgd2lkdGg9MzkgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMUYvNTEvckJBQ0UxTUp1RHZTOUF4NEFBQUJmVTZOV0lJNzcxLnBuZyI+LOWPr+aDs+WIsOeUqOaPkOWFrOWboOW8j+eahOaWueazleaxguinow==
- 答案：RA==
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
本课配套习题挑战模式6/6
单选题
难度系数：
6.方程3x（1-x）=2（x-1）2的两根是（ ）
A:  |
B:  |
C:  |
D:  |
一次做对，真牛！
+5奖励规则>
- 提示1：IOagueaNruetieW8j+S4pOi+ueS4gOS4quaYrzxpbWcgd2lkdGg9MzEgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMUYvNTEvckJBQ0UxTUp1RC15VzF5dkFBQUJVQm9LRGNBOTI3LnBuZyI+77yM5Y+m5LiA5Liq5pivPGltZyB3aWR0aD0zMSBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8xRi81MS9yQkFDRTFNSnVELURMaElJQUFBQlNTcjZRYVUyNzkucG5nIj4s5Y+v5YWI6YCa6L+H56e76aG55YyW5Li6PGltZyB3aWR0aD0xNTkgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvRkMvNkEvckJBQ0ZGTUp1RC1naWxuUEFBQUN5UzFhNW9ZNTc5LnBuZyI+
- 提示2：IOWGjeWwhjxpbWcgd2lkdGg9NTMgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvRkMvNkEvckJBQ0ZGTUp1RF9EdWFOX0FBQUJ6bTZxZkQ4ODYwLnBuZyI+562J5Lu36L2s5YyW5Li6PGltZyB3aWR0aD01MyBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8xRi81MS9yQkFDRTFNSnVEX3d3THNXQUFBQnlqU1pwclE0NzIucG5nIj4=
- 提示3：IOS5i+WQjuWGjeeUqOaPkOWFrOWboOW8j+eahOaWueazleaxguinow==
- 答案：RA==
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
