Free Printable 20220415_2次方程式-因数分解利用

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20220415_2次方程式-因数分解利用

Total questions: 8

Worksheet time: 4mins

Name

Class

Date

1.

① x²-5x-14=0

a)

x=2,7

b)

x=2,-7

c)

x=-2,7

d)

x=-2,-7

e)

解なし

2.

② x²+9x+20=0

a)

x=4,5

b)

x=4,-5

c)

x=-4,5

d)

x=-4,-5

e)

解なし

3.

③ x²=x+72

a)

x=8,9

b)

x=8,-9

c)

x=-8,9

d)

x=-8,-9

e)

解なし

4.

④ x^2-121=0

a)

x=11

b)

x=-11

c)

x=±11

d)

x=±121

e)

解なし

5.

⑤ x²+18x+81=0

a)

x=9

b)

x=-9

c)

x=±9

d)

x=0,9

e)

その他

6.

⑥ 4x²-4x+1=0

a)

x=2

b)

x=-2

c)

x=1/2

d)

x=-1/2

e)

その他

7.

⑦ x²+2x=0

a)

x=2

b)

x=-2

c)

x=±2

d)

解なし

e)

その他

8.

⑧ 3x²-8x+4=0

a)

x=2,2/3

b)

x=2,3/2

c)

x=1/2,2/3

d)

x=1/2,3/2

e)

その他

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