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3-1-8(練習題)

3-1-8(練習題)

Assessment

Interactive Video

Education

8th Grade

Easy

Created by

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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