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2上 3-2 利用十字交乘法做因式分解

Authored by 康軒數位 康軒數位

Mathematics

8th Grade

2上 3-2 利用十字交乘法做因式分解
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

因式分解(x+2)(5x-12)+9x,可得下列哪一個結果?

(x+3)(5x-8)

(x+4)(5x-6)

(x-6)(5x+4)

(x-8)(5x+3)

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

x2pxq=(xa)(xb),若p<0,q>0,則下列何者正確?

a>0、b<0

a<0、b>0

a>0、b>0

a<0、b<0

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

因式分解x2-11x+24,可得下列哪一個結果?

(x-1)(x-24)

(x-2)(x-12)

(x-3)(x-8)

(x-4)(x-6)

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

因式分解x2+10x+24,可得下列哪一個結果?

(x+1)(x+24)

(x+2)(x+12)

(x+3)(x+8)

(x+4)(x+6)

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列何者不是x5-3x3-4x的因式?

x-2

x+2

x3x

x-1

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

將(3x+2)(3x-2)+5x因式分解,並判別下列何者是它的因式?

x+1

x-1

3x+2

9x+4

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