配套习题- 巧用换元法分解因式 -【青果学院】

1/5单选题

难度：

1.

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)

正确答案：QQ==

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

2/5单选题

难度：

2.分解因式(x-1)(x+2)(x-3)(x+4)+24＝（）

A	(x+2)(x+3)( x²+x-8)
B	(x-2)(x+3)( x²+x-8)
C	(x-2)(x-3)( x²+x-8)
D	(x-2)(x+3)( x²-x-8)

正确答案：Qg==

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

3/5单选题

难度：

3.分解因式(x²+4x+6)+ (x²+6x+6) +x²＝（）

A	(x-2)² (x+3)².
B	(x+2)² (x-3)².
C	(x-2)² (x-3)².
D	(x+2)² (x+3)².

正确答案：RA==

PGRpdj7op6PvvJogbShtKzJ4KSsgeDxzdXA+MiA8L3N1cD48L2Rpdj48ZGl2Pj0gbTxzdXA+Mjwvc3VwPisybXgreDxzdXA+Mjwvc3VwPjwvZGl2PjxkaXY+PSAobSt4KTxzdXA+Mjwvc3VwPjwvZGl2PjxkaXY+PSAoIHg8c3VwPjI8L3N1cD4rNHgrNit4KTxzdXA+Mjwvc3VwPjwvZGl2PjxkaXY+PSAoIHg8c3VwPjI8L3N1cD4rNXgrNik8c3VwPjI8L3N1cD48L2Rpdj48ZGl2Pj0gWyh4KzIpKHgrMyldPHN1cD4yPC9zdXA+PC9kaXY+PGRpdj49ICh4KzIpPHN1cD4gMjwvc3VwPiAoeCszKTxzdXA+Mjwvc3VwPi48L2Rpdj4=

4/5单选题

难度：

4.分解因式：

=( )

A
B
C
D

正确答案：Qg==

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

5/5单选题

难度：

5.

分解因式x²(x+1)-2003×2004x＝（）

A	x(x-2003)(x+2004)
B	x(x+2003)(x+2004)
C	x(x+2003)(x-2004)
D	x(x-2003)(x-2004)

正确答案：QQ==

PGRpdj7op6PvvJogeDxzdXA+Mjwvc3VwPih4KzEpIOKAkyBtKG0rMSl4PC9kaXY+PGRpdj49IHhbeCh4KzEpLW0obSsxKV08L2Rpdj48ZGl2Pj0geCh4PHN1cD4yPC9zdXA+K3gtbTxzdXA+Mjwvc3VwPi1tKTwvZGl2PjxkaXY+PSB4Wyh4PHN1cD4yPC9zdXA+IC1tPHN1cD4yPC9zdXA+KSArKHgtbSldPC9kaXY+PGRpdj49IHhbKHgrbSkgKHgtbSkrKHgtbSldPC9kaXY+PGRpdj49IHgoeC1tKSh4K20rMSk8L2Rpdj48ZGl2Pj0geCh4LTIwMDMpKHgrMjAwMysxKTwvZGl2PjxkaXY+PSB4KHgtMjAwMykoeCsyMDA0KS48L2Rpdj4=