20220425_2次方程式-解の公式
Authored by Takayuki Yokoi
Mathematics
9th Grade
Used 12+ times
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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
① x2-5x+3=0
その他
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
② x2+2x-1=0
x=-1
x=±1
x=1±√2
x=-1±√2
その他
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
③ x2+6x+5=0
x=1,5
x=-1,-5
x=-3±√14
x=3±√14
その他
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
④ 3x2-x-1=0
その他
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
⑤ 5x2+2x-3=0
その他
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
⑥ x2+8x+16=0
x=4
x=-4
x=4±4√2
x=-4±4√2
その他
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