

3-1-6(練習題)
Interactive Video
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Education
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8th Grade
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Medium
余武蔚 余武蔚
Used 1+ times
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4 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
請問將代數式 (4-3x) 變號後,會得到下列哪一個結果?
3x-4
-(3x-4)
4+3x
-(4+3x)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將 (3x-4)(2x+1) - (3x-4)(x-5) 提出公因式 (3x-4) 後,括號內的剩餘項化簡結果為何?
x-4
x+6
3x+6
3x-4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一個等式是正確的?
(a-b) = (b-a)
(a-b) = -(b-a)
(a-b)^2 = -(b-a)^2
(a-b)^2 = (b+a)^2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將代數式 (2-3x)^2 + (6x-4) 變形後,下列哪一個選項是正確的?
(3x-2)^2 + 2(3x-2)
-(3x-2)^2 + 2(3x-2)
(3x-2)^2 - 2(3x-2)
(3x-2)^2 + 2(2-3x)
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