Search Header Logo

國中數學二上4-1

Authored by 康軒 國中

Education

7th Grade

Used 15+ times

國中數學二上4-1
AI

AI Actions

Add similar questions

Adjust reading levels

Convert to real-world scenario

Translate activity

More...

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若2為 2x2−4x+(a2+a−6)=02x^2-4x+\left(a^2+a-6\right)=0 的一根,則 a=?a=?

2或3
2或-3
-2或3
-2或-3

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

解方程式 (3x−8)2−(7x−12)2=0\left(3x-8\right)^2-\left(7x-12\right)^2=0 ,得 x=?x=?

8或12

83\frac{8}{3} 或 127\frac{12}{7}

0或1
1或2

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

張老師說 x2+x−2=0x^2+x-2=0 與 x2+3x−a=0x^2+3x-a=0 有一共同解,則 a=?a=?

1或-2
2或-1
4或-2
2或-4

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若方程式 3x2−kx+231=03x^2-kx+231=0 的解皆為質數,則 k−?k-?

39
43
54
63

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若(x+1)(2x+3)-10=2(x-a)(x-b)的兩根為a、b,則a+b=?

-5

−52-\frac{5}{2}

5

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

方程式 9x2+21x−8=09x^2+21x-8=0 兩根之差為多少?

1
2
3
4

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

x2+ax+14=0x^2+ax+14=0 的解都是質數,則下列有關 aa 的敘述何者正確?

a>0
-2≦a<0
a≦-9
-8≦a<-2

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Microsoft

Continue with Microsoft

or continue with

Facebook

Facebook

Apple

Apple

Others

Others

By signing up, you agree to our Terms of Service & Privacy Policy

Already have an account?