Quiz about 다항식의 연산

Question 1

Question 1.

Accepted Answer

$$\left(1\right)\ x^3+x^2y+2x-3y^2$$ $$\left(2\right)\ 5y^3+xy^2-y+2x^2-1$$

Answer

$$\left(1\right)\ x^3+x^2y+2x-3y^2$$ $$\left(2\right)\ 2x^2+xy^2+5y^3-y-1$$

Answer

$$\left(1\right)\ x^3+2x+x^2y-3y^2$$ $$\left(2\right)\ 5y^3+xy^2-y+2x^2-1$$

Answer

$$\left(1\right)\ -3y^2+x^2y+x^3+2x$$ $$\left(2\right)\ 5y^3+xy^2-y+2x^2-1$$

Question 2

Question 2.

Accepted Answer

$$\left(1\right)\ 8y^3-11xy+6x^2$$ $$\left(2\right)\ -7x^2-11xy+9y^2$$

Answer

$$\left(1\right)\ 6x^2-21xy+8y^3$$ $$\left(2\right)\ -7x^2-19xy+9y^2$$

Answer

$$\left(1\right)\ 6x^2-11xy+8y^3$$ $$\left(2\right)\ -7x^2-11xy+15y^2$$

Answer

$$\left(1\right)\ 6x^2-21xy+8y^3$$ $$\left(2\right)\ 9y^2-11xy-7x^2$$

Question 3

Question 3.

Accepted Answer

$$-7x^3+16x^2+8x-12$$

Answer

$$-3x^3+16x^2+8x-12$$

Answer

$$-7x^3+16x^2+8x+12$$

Answer

$$-7x^3+16x^2-8x-12$$

Question 4

Question 4.

Accepted Answer

$$A\ :\ 2x^3+3x+1$$ $$B\ :\ x^3-3x^2-x-2$$

Answer

$$A\ :\ 2x^3+3x+1$$ $$B\ :\ x^3-3x^2+x+2$$

Answer

$$A\ :\ 2x^3+3x-1$$ $$B\ :\ x^3+3x^2-x-2$$

Answer

$$A\ :\ 2x^3+3x-1$$ $$B\ :\ x^3-3x^2+x+2$$

Question 5

Question 5.

Accepted Answer

$$\left(1\right)\ x^6-3x^4y^2+3x^2y^4-y^6$$ $$\left(2\right)\ a^3+b^3+c^3-3abc$$

Answer

$$\left(1\right)\ x^6-3x^2y^4+3x^4y^2-y^6$$ $$\left(2\right)\ a^3+b^3+c^3-3abc$$

Answer

$$\left(1\right)\ x^6-3x^4y^2+3x^2y^4-y^6$$ $$\left(2\right)\ a^3+b^3+c^3+3abc$$

Answer

$$\left(1\right)\ x^6+3x^4y^2+3x^2y^4+y^6$$ $$\left(2\right)\ a^3+b^3+c^3-abc$$

Question 6

Question 6.

Accepted Answer

$$\left(1\right)\ 6$$ $$\left(2\right)\ -6$$ $$\left(3\right)\ 19$$

Answer

$$\left(1\right)\ 6$$ $$\left(2\right)\ -6$$ $$\left(3\right)\ 38$$

Answer

$$\left(1\right)\ 6$$ $$\left(2\right)\ 6$$ $$\left(3\right)\ 38$$

Answer

$$\left(1\right)\ 6$$ $$\left(2\right)\ 6$$ $$\left(3\right)\ 19$$

Question 7

Question 7.

Accepted Answer

-2

Answer

1

Answer

2

Answer

0

Question 8

A=?

Accepted Answer

$$A=x^2-x+2$$

Answer

$$A=x^3-x+2$$

Answer

$$A=x^2-x-2$$

Answer

$$A=x^2+x-2$$

Question 9

Question 9.

Accepted Answer

$$-2y^2+3xy-x^2$$

Answer

$$-x^2+3xy-y^2$$

Answer

$$-2x^2+3xy-y^2$$

Answer

$$-x^2+xy-2y^2$$

Question 10

Question 10.

Accepted Answer

82

Answer

14

Answer

28

Answer

20

Question 11

Question 11.

Accepted Answer

7

Answer

$$2x+3$$

Answer

3

Answer

$$2x+7$$

Question 12

Question 12.

Accepted Answer

48

Answer

12

Answer

36

Answer

24

다항식의 연산

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