3年数学 平方根で2次方程式を解く

3年数学 平方根で2次方程式を解く

3rd Grade

10 Qs

quiz-placeholder

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3年数学 平方根で2次方程式を解く

3年数学 平方根で2次方程式を解く

Assessment

Quiz

Mathematics

3rd Grade

Practice Problem

Medium

Created by

Hajime BB

Used 1+ times

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10 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

 x2=9x^2=9  の解をすべて選びなさい。

 x=9x=\sqrt{9}  

 x=3x=3  

 x=3x=-3  

 x=4.5x=4.5  

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

 x2=1x^2=1  の解をすべて選びなさい。

 x=1x=1  

 x=1x=-1  

 x=0.5x=-0.5  

 x=0.5x=0.5  

3.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

 x2=10x^2=10  の解をすべて選びなさい。

 x=10x=10  

 x=5x=-5  

 x=10x=-\sqrt{10}  

 x=10x=\sqrt{10}  

4.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

 x225=0x^2-25=0  の解をすべて選びなさい。

 x=25x=-\sqrt{25}  

 x=5x=5  

 x=5x=-5  

 x=25x=\sqrt{25}  

5.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

 x212=0x^2-12=0  の解をすべて選びなさい。

 x=23x=-2\sqrt{3}  

 x=23x=2\sqrt{3}  

 x=12x=-\sqrt{12}  

 x=32x=3\sqrt{2}  

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

 x218=0x^2-18=0  の解をすべて選びなさい。

 x=23x=-2\sqrt{3}  

 x=23x=2\sqrt{3}  

 x=9x=-9  

 x=32x=3\sqrt{2}  

7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

 3x2=123x^2=12  の解をすべて選びなさい。

 x=4x=-\sqrt{4}  

 x=3x=3  

 x=2x=-2  

 x=4x=4  

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