1 . x3-x2

• A. 2
• B. 4
• C. -6
• D. -8

Answer: Option B

Explanation:

2 . y=x-x2+x3-x4+.........∞

• A. $\frac{y}{1-y}$
• B. $\frac{y}{1+y}$
• C. $\frac{-y}{1+y}$
• D. $\frac{y}{y-1}$

Answer: Option A

Explanation:

3 . x3-x5=2

• A. 1
• B. 3
• C. 12
• D. 15

Answer: Option D

Explanation:

4 . 2x3-x-3

• A. (2x-3)(x+1)
• B. (2x-3)(x-1)
• C. (2x+3)(x+1)
• D. (2x+3)(x-1)

Answer: Option A

Explanation:

5 . x3-x-6

• A. $\left(x+2\right) \left(x^2-2x\right)$
• B. $\left(x-2\right) \left(x^2+2x+3\right)$
• C. $\left(x-2\right)$
• D. $\left(x^2+2x+3\right)$

Answer: Option B

Explanation:

6 . f(x)=x3-x2-x-18

• A. 0
• B. 1
• C. 2
• D. 3

Answer: Option A

Explanation:

7 . x3-x

• A. x(x+1)
• B. x(x-1)
• C. (x+1)(x-1)
• D. x(x+1)(x-1)

Answer: Option D

Explanation:

8 . 3x3-x-14

• A. (3x+7)(x+2)
• B. (3x-7)(x+2)
• C. (3x+7)(x-2)
• D. (3x-7)(x-2)

Answer: Option B

Explanation:

9 . x3-x5=13

• A. 1.5
• B. 2.5
• C. 3.5
• D. 4.5

Answer: Option B

Explanation: