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Worksheets中二級 因式分解 (十字相乘法)
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
x2+5x+6
a)
(x−2)(x+3)
b)
(x−2)(x−3)
c)
(x+2)(x+3)
d)
(x+2)(x−3)
2.
x2−5x−6
a)
(x−6)(x+1)
b)
(x−6)(x−1)
c)
(x+2)(x+3)
d)
(x−2)(x−3)
3.
x2−7x+12
a)
(x−6)(x+2)
b)
(x−3)(x−4)
c)
(x+4)(x+3)
d)
(x−7)(x+12)
4.
x2−x−6
a)
(x−2)(x+3)
b)
(x−3)(x−4)
c)
(x+2)(x−3)
d)
(x−1)(x+6)
5.
x2−2x−15
a)
(x−3)(x+5)
b)
(x−3)(x−5)
c)
(x+5)(x+3)
d)
(x+3)(x−5)
6.
x2−5x−14
a)
(x−7)(x+2)
b)
(x−2)(x−7)
c)
(x−5)(x−14)
d)
(x+2)(x+7)
7.
x2+9x+20
a)
(x−2)(x+10)
b)
(x+5)(x+4)
c)
(x−5)(x−4)
d)
(x+2)(x+7)
8.
m2−8m+15
a)
(m−3)(m+5)
b)
(m+1)(m−9)
c)
(m−5)(m+3)
d)
(m−3)(m−5)
9.
m2+7m−18
a)
(m−2)(m+9)
b)
(m+2)(m−9)
c)
(m−6)(m+3)
d)
(m−9)(m−9)
10.
2m2+4m−16
a)
(2m−4)(m+4)
b)
(2m+8)(m−2)
c)
2(m−2)(m+4)
d)
2(m−2)(m−4)
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