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國中數學八年級總複習

Authored by FaHui Xie

Mathematics

8th - 9th Grade

Used 2+ times

國中數學八年級總複習
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13 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

利用乘法公式判斷,下列等式何者成立?

ab2a2+2abb2

ab2a2-2abb2

(A) 2482+248×52+522=3002

(B)2482-248×48-482=2002

(C)2482+2×248×52+522=3002

(D) 2482-2×248×48-482=2002

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

化簡(4x25x7)-(-2x2x4)之後,可得下列哪一個結果?    

(A) 2x2-4x+3

(B) 2x2-6x+11

(C) 6x2-4x+3  

(D) 6x2-6x+11

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

.                   計算(2x3)(3x4)的結果,與下列哪一個式子相同?                          

        

(A)-7x+4

(B)-7x-12

(C) 6x2-12

(D) 6x2x-12

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪一個選項中的等式成立?

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

     若多項式5x2+17x-12可因式分解成(xa)(bxc),其中a、b、c均為整數,則ac之值為何?             

(A) 1

(B) 7

(C)  11

(D) 13

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

     x=2 不是下列哪一個方程式的解?

(A) 3(x-2)=0

(B) 2x2-3x=2

(C)(x-2)(x+2)=0 

(D) x2x+2=0

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