一元二次方程式

一元二次方程式

7th - 8th Grade

12 Qs

quiz-placeholder

Similar activities

Quadratic Functions

Quadratic Functions

7th - 12th Grade

10 Qs

Subtracting Polynomials

Subtracting Polynomials

8th Grade

9 Qs

7.1/7.2 Adding, Subtracting, and Multiplying Polynomials

7.1/7.2 Adding, Subtracting, and Multiplying Polynomials

8th - 11th Grade

10 Qs

Add/Subtract Polynomials

Add/Subtract Polynomials

7th - 9th Grade

12 Qs

Solve Quadratic Equations by Factoring

Solve Quadratic Equations by Factoring

8th - 12th Grade

10 Qs

Comparing Expressions with Algebra Tiles

Comparing Expressions with Algebra Tiles

7th Grade

10 Qs

Solving Quadratic Equations

Solving Quadratic Equations

8th Grade

15 Qs

Solving Quadratic Equations by Factoring

Solving Quadratic Equations by Factoring

8th - 12th Grade

17 Qs

一元二次方程式

一元二次方程式

Assessment

Quiz

Mathematics

7th - 8th Grade

Hard

Created by

老师邱丽萍 Peng

Used 64+ times

FREE Resource

12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列各式中,哪些是一元二次方程式。

x2+2x=12x^2+2x=12

x23=4xx^2-3=\frac{4}{x}

x2+2xy+y2=0x^2+2xy+y^2=0

2x3=x12x^3=x-1

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

求  x2+5x+6=0x^2+5x+6=0  的根。

 x=3 or x=2x=3\ or\ x=2  

 x=3 or x=2x=-3\ or\ x=-2  

 x=2 or x=3x=-2\ or\ x=3  

 x=3 or x=2x=-3\ or\ x=2  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 m(m1)=72m\left(m-1\right)=72  。


 x=8 or x=9x=-8\ or\ x=9  

 x=9 or x=8x=-9\ or\ x=8  

 x=8 or x=9x=8\ or\ x=9  

 x=8 or x=9x=-8\ or\ x=-9  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 (2x1)(x2)=5\left(2x-1\right)\left(x-2\right)=5 的根。 

 x=12or x=3x=-\frac{1}{2}or\ x=3  

 x=12or x=3x=\frac{1}{2}or\ x=-3  

 x=1 or x=32x=1\ or\ x=-\frac{3}{2}  

 x=32 or x=1x=\frac{3}{2}\ or\ x=-1  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下哪一个正确的选项

x2+mx+(m2)2=(x+m)2x^2+mx+\left(\frac{m}{2}\right)^2=\left(x+m\right)^2

x210x+25=(x+5)2x^2-10x+25=\left(x+5\right)^2

x2+px+p2=(x+p)2x^2+px+p^2=\left(x+p\right)^2

x24x+16=(x16)2x^2-4x+16=\left(x-16\right)^2

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 x2+9=0x^2+9=0  

wu'jie

0

3

 ±3\pm3  

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 x2+5x+2=0 x^2+5x+2=0\  的解集。 


 x=5±172x=\frac{-5\pm\sqrt{17}}{2}  

 {5±172}\left\{\frac{-5\pm\sqrt{17}}{2}\right\}  

0

wu'jie

Create a free account and access millions of resources

Create resources
Host any resource
Get auto-graded reports
or continue with
Microsoft
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?