
八年級數學-一元二次方程式
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
蔡佩旻 蔡佩旻
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列何者化簡後為一元二次方程式?
-3x2-5x+4
(5x-2)(7x-3)=x-2
6x2-2x+3=6x2+x+4
(x+3)2=x2
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
已知方程式(x-1)(3x+2)=0,則 3x+2=?
5 或 0
-2/3或 0
-或 1
0
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列何者為方程式 x2+10x=0 的解?
10
-10
5
-5
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列選項中,哪個可以是(x+1)(x-2)=18 的解?
3
4
5
6
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
若 a 是 4x2-5x-2=0 的解,則 8a2-10a+3=?
7
8
9
10
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
關於(x+2)(x-3)=-4 的敘述,下列何者正確?
可由(x+2)=2,(x-3)=-2 找到 x 的解
x 會有無限多個解
x 的解為-1 或-4
x 的解為 2 或-1
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列各方程式何者的根恰有一個為 0?
4x+3=0
x2-4=0
3x2+5x=0
3x2-10x-8=0
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