Quiz about Hằng đẳng thức

Question 1

x² - 4x +4

Accepted Answer

(x - 2)2

Answer

(x + 1)2

Answer

(2 + x)2

Answer

(x - 1)3

Question 2

(3x - 1) (3x + 1) = ...

Accepted Answer

9x2 - 1

Answer

(3x - 1)2

Answer

3x2 -1

Answer

(3x + 1)2

Question 3

(x² - 2)(x⁴ + 2x² + 4) = ...

Accepted Answer

x6 - 8

Answer

(x - 2)3

Answer

(x - 2)2

Answer

x3 - 8

Question 4

-x³ + 6x² - 12x + 8 = ...

Accepted Answer

(2 - x )3

Answer

(x -2)3

Answer

x3 - 8

Answer

x3 + 8

Question 5

8x³ + y³= ...

Accepted Answer

(2x + y)(4x²- 2xy + y³)

Answer

(2x + y)(4x²+ 2xy + y³)

Answer

(2x - y)(4x²+ 2xy + y³)

Answer

(2x + y)(4x²+ 4xy + y³)

Question 6

16x² + 24x + 9 = ...

Accepted Answer

(4x + 3)2

Answer

(4x + 3)(4x - 3)

Answer

(4x - 3)2

Answer

(3 - 4x)2

Question 7

(x + y)² - 4(x + y) + 4 = ...

Accepted Answer

(x + y - 2)²

Answer

x2 - y2

Answer

(x + y)3

Answer

(x + y -2)(x + y +2)

Question 8

(x + 5)(x² - 5x + 25) = ...

Accepted Answer

x3 + 125

Answer

x2 + 25

Answer

(x + 5)3

Answer

(x + 5)2

Question 9

(3y + z²) = ...

Accepted Answer

9y² + 6yz² + z⁴

Answer

9y² + 3yz² + z⁴

Answer

3y² + 3yz² + z⁴

Answer

3y² - 3yz² + z²

Question 10

64x³ - 27y³

Accepted Answer

(4x - 3y)(16x² + 12xy + 9y²)

Answer

(4x - 3y)³

Answer

(4x - 3y)(16x² - 12xy + 9y²)

Answer

(4x + 3y)³

Question 11

4x²y⁴ - 12xy² + 9

Accepted Answer

(2xy² - 3)²

Answer

(2x²y² + 3)²

Answer

(2xy² - 3)(2xy² + 3)

Answer

(2xy² + 3)³

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