國中數學二上1-1
Quiz
•
Education
•
6th - 8th Grade
•
Practice Problem
•
Medium
康軒 國中
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10 questions
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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=?
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如果1234.52=12342+Y,則Y=?
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?
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
若4052=4002+a+52,則a之值為多少?
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