
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

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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
設x2+px+q=(x+a)(x+b),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
x3+x
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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