
二年級上學期復習
Authored by CHU YK
Mathematics
8th Grade
Used 17+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(a+b)(c+d) 展開之後是什麼?
ab+cd+bc+ad
ac+ad+bc+bd
ab+cd
ac+ad−bc−bd
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
選出「差的平方公式」
a²−b²
(a+b)²
(a−b)²
(a−b)(a+b)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6x²+4x+3 有幾項?
4
3
2
1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6x³+9x²−7x−15 的 x² 項係數是多少?
6
9
−7
−15
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
面積為 2 的正方形,邊長是多少?
1
2
√2
4
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
√2.25 是多少?
15
1.5
25
0.15
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3√2 是什麼式子的簡記?
√2+√2+√2
√3+√3
√2×√2×√2
√3×√3
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