1/8-1/9第四章複習
Quiz
•
Mathematics
•
6th - 8th Grade
•
Hard
張偉群 張偉群
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪一個方程式為一元二次方程式?
2x-1=8
4x-3y=6x+1
5x2+2-3x
-x2+2=0
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列何者是一元二次方程式?
x2+3x+2
2x+y-3=0
x(x-3)=1
2x2+5=2x2+x+3
Answer explanation
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
-3是下列哪一個方程式的根(解)?
x2-3x=0
3x2=0
x2+3x=0
x2+3=0
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
若a×b=0,則下列敘述何者正確?
a一定等於0
b一定等於0
a=-1且b=1
a=0或b=0
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
方程式(2x+3)(3x-1)=0兩個解等於多少?
-2/3、3
2/3、-3
-3/2、1/3
-3/2、-1/3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
若x2+8x=0,則x=?
-8或0
8或0
4或0
-4或0
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(x-1)2-(x-1)(2x-4)=0可以化簡為下列何式?
(x-1)(x-1-2x-4)=0
(x-1)(-x-3)=0
(x-1)(-x+3)=0
(x-1)(1-2x+4)
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