
3-1-8(練習題)
Interactive Video
•
Education
•
8th Grade
•
Easy
余武蔚 余武蔚
Used 1+ times
FREE Resource
4 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將 9x^2 + 12x + 4 因式分解,結果為何?
(3x - 2)^2
(3x + 2)^2
(9x + 4)^2
(9x - 4)^2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將 16x^2 - 8x + 1 因式分解,結果為何?
(4x + 1)^2
(16x - 1)^2
(4x - 1)^2
(16x + 1)^2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在因式分解形如 ax^2 + bx + c 的多項式時,如果 a、b、c 都有共同的因數,第一步通常會怎麼做?
直接套用平方公式
將共同因數提出
嘗試使用十字交乘法
檢查判別式
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將 2x^2 + 12x + 18 因式分解,結果為何?
2(x + 3)^2
2(x - 3)^2
(2x + 6)^2
(x + 3)^2
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