− ( 3 x − y ) -\left(3x-y\right) − ( 3 x − y )

− 3 x − y -3x-y − 3 x − y

− 2 ( 2 a − 3 b ) -2\left(2a-3b\right) − 2 ( 2 a − 3 b )

− 4 a + 6 b -4a+6b − 4 a + 6 b

− 4 a − 3 b -4a-3b − 4 a − 3 b

( 2 x − y ) − ( 3 x + 2 y ) \left(2x-y\right)-\left(3x+2y\right) ( 2 x − y ) − ( 3 x + 2 y )

− x − 3 y -x-3y − x − 3 y

2 ( a − 3 b ) − 3 ( 2 a + b ) 2\left(a-3b\right)-3\left(2a+b\right) 2 ( a − 3 b ) − 3 ( 2 a + b )

− 4 a − 9 b -4a-9b − 4 a − 9 b

整式複習1 Quiz: 15 Practice Questions (Grade 7)

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

$-3a^2$ 的係數和次數分別是

$-3;\ 2$

$2\ ;\ -3$

$3\ ;\ 2$

$2\ ;\ 3$

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

8的係數和次數分別是

$8\ ;\ 0$

$0\ ;\ 8$

$8\ ;\ 8$

$0\ ;\ 0$

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$-\frac{4\pi xy^2}{9}$ 的係數和次數分別是

$-\frac{4\pi}{9}\ ;\ 3$

$3\ ;\ \ -\frac{4\pi}{9}$

$-\frac{4}{9}\ ;\ 4$

$4\ ;\ -\frac{4}{9}$

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$3a^2-1^4+2a-a^3$ 的最高次項為

$-a^3$

$3a^2$

$-1^4$

$+2a$

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$3a^2-1^4+2a-a^3$ 的常數項為

$-1^4$

$3a^2$

$+2a$

$-a^3$

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$3a^2-1^4+2a-a^3$ 的命名為

三次四項式

四次四項式

二次四項式

五次四項式

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$b-3b$

$-2b$

$2b$

$4b$

$-4b$

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$-ab-ab$

$-2ab$

$2ab$

$0$

$2ab^2$

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$ab^2-3b^2a$

$-2ab^2$

$2ab^2$

$3b^2a$

$0$

10.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

$+\left(3a-b\right)$

$3a-b$

$-3a+b$

$3a+b$

$-3a-b$

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整式複習1

−3a2-3a^2−3a2 的係數和次數分別是

8的係數和次數分別是

−4πxy29-\frac{4\pi xy^2}{9}−94πxy2​ 的係數和次數分別是

3a2−14+2a−a33a^2-1^4+2a-a^33a2−14+2a−a3 的最高次項為

3a2−14+2a−a33a^2-1^4+2a-a^33a2−14+2a−a3 的常數項為

3a2−14+2a−a33a^2-1^4+2a-a^33a2−14+2a−a3 的命名為

b−3bb-3bb−3b

−ab−ab-ab-ab−ab−ab

ab2−3b2aab^2-3b^2aab2−3b2a

+(3a−b)+\left(3a-b\right)+(3a−b)

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Discover more resources for Mathematics

$-3a^2$ 的係數和次數分別是

$-\frac{4\pi xy^2}{9}$ 的係數和次數分別是

$3a^2-1^4+2a-a^3$ 的最高次項為

$3a^2-1^4+2a-a^3$ 的常數項為

$3a^2-1^4+2a-a^3$ 的命名為

$b-3b$

$-ab-ab$

$ab^2-3b^2a$

$+\left(3a-b\right)$