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(8上)第二次段考

Total questions: 11

Worksheet time: 11mins

Name
Class
Date
1.

下列何者不是 3\sqrt[]{3} 的同類方根?

a)

12\sqrt[]{12}

b)

63\frac{6}{\sqrt[]{3}}

c)

243\frac{\sqrt[]{24}}{3}

d)

16 13\sqrt[]{16\ \frac{1}{3}}

2.

(複選)若3、4、x是直角三角形的三邊長,則x可能為?

a)

5

b)

2

c)

7

d)

7\sqrt[]{7}

3.

13−2=?\frac{1}{3-\sqrt[]{2}}=?

a)

2+37\frac{\sqrt[]{2}+3}{7}

b)

3−27\frac{3-\sqrt[]{2}}{7}

c)

3−23-\sqrt[]{2}

d)

3+29\frac{3+\sqrt[]{2}}{9}

4.

因式分解:
x(2x+1)-x(x+2)=

5.

因式分解:
9x2−16=9x^2-16=

6.

因式分解:
x2−5x−14=x^2-5x-14=

7.

因式分解:
4x2−20x+25=4x^2-20x+25=

8.

已知多項式5x2+34x-7可因式分解成(5x-1)(x+m),則m=

9.

BD‾\overline{BD} = ?

10.

A(2,-3)和B(3,-5),則 AB‾\overline{AB} = ?

11.

BD‾=?\overline{BD}=?

a)

512\frac{5}{12}

b)

4

c)

5

d)

125\frac{12}{5}