國中數學二上1-1

國中數學二上1-1

6th - 8th Grade

10 Qs

quiz-placeholder

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Assessment

Quiz

Education

6th - 8th Grade

Practice Problem

Medium

Created by

康軒 國中

Used 6+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列選項何者正確?

(3-2)2=32-22

(5+3)2=52+32

(9-7)(9+7)=92-72

(4-3)2=42-2×4×3-32

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

利用乘法公式計算(5-2x)(2x+5)可以得到下列何式?

25+4x2

25-4x2

25x-4x2

25x2-4x

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列等式何者正確?

(7-3)2=-(3-7)2

(-7-3)2=72+2×7×3+32

(7+3)(-7-3)=72-32

(-7-3)2=72-2×7×3+32

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

利用「和的平方」公式,計算300.32=?

900.9
900.09
90000.09
90180.09

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

如果1234.52=12342+Y,則Y=?

0.25
617.25
1234.25
1234.5

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A=(a-b)2,B=(b-a)2,利用「差的平方」公式展開,則A、B的大小關係為何?

A>B
A=B
A<B
條件不足無法判斷

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若4052=4002+a+52,則a之值為多少?

0
400
2000
4000

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