2次不等式を極める①

2次不等式を極める①

10th - 12th Grade

8 Qs

quiz-placeholder

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2次不等式を極める①

2次不等式を極める①

Assessment

Quiz

Mathematics

10th - 12th Grade

Practice Problem

Medium

Created by

Kenji Takei

Used 29+ times

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8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

次の2次不等式を解け.

 (x+1)(x4)>0\left(x+1\right)\left(x-4\right)>0  

 x<1, 4<xx<-1,\ 4<x  

 1<x<4-1<x<4  

 x<4,  1<xx<-4,\ \ 1<x  

 4<x<1-4<x<1  

2.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

次の2次不等式を解け.

 (x2)(x3)0\left(x-2\right)\left(x-3\right)\le0  

 x<2, 3<xx<2,\ 3<x  

 2<x<32<x<3  

 x2,  3xx\le2,\ \ 3\le x  

 2x32\le x\le3  

3.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

次の2次不等式を解け.

 (x2)(x+5)<0\left(x-2\right)\left(x+5\right)<0  

 x<5, 2<xx<-5,\ 2<x  

 5<x<2-5<x<2  

 x<5,  2<xx<-5,\ \ 2<x  

 2<x<5-2<x<5  

4.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

次の2次不等式を解け.

 (x3)(x+3)0\left(x-3\right)\left(x+3\right)\ge0  

 x<3, 3<xx<-3,\ 3<x  

 3<x<3-3<x<3  

 x3,  3xx\le-3,\ \ 3\le x  

 3x3-3\le x\le3  

5.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

次の2次不等式を解け.

 (x1)(3x1)<0\left(x-1\right)\left(3x-1\right)<0  

 x<13,  1<xx<\frac{1}{3},\ \ 1<x  

 13<x<1\frac{1}{3}<x<1  

 x13,  1xx\le\frac{1}{3},\ \ 1\le x  

 13x1\frac{1}{3}\le x\le1  

6.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

次の2次不等式を解け.

 (x2)(2x+1)0\left(x-2\right)\left(2x+1\right)\ge0  

 x12,  2xx\le-\frac{1}{2},\ \ 2\le x  

 12x2-\frac{1}{2}\le x\le2  

 x2,  12xx\le-2,\ \ \frac{1}{2}\le x  

 2x12-2\le x\le\frac{1}{2}  

7.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

次の2次不等式を解け.

 (x+7)(x1)<0\left(x+7\right)\left(x-1\right)<0  

 x<7,  1xx<-7,\ \ 1\le x  

 7<x<1-7<x<1  

 x<1,  7<xx<-1,\ \ 7<x  

 1<x<7-1<x<7  

8.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

次の2次不等式を解け.

 x(x3)0x\left(x-3\right)\le0  

 x0,  3xx\le0,\ \ 3\le x  

 0x30\le x\le3  

 x3x\le3  

 x3x\ge3