Câu hỏi của good Nguyễn

Question

12x^2 + 5x - 12y^2 + 12y - 10xy -3

Thuy Nguyen · Accepted Answer

`12x² + 5x – 12y² + 12y – 10xy – 3`

`= 12x² + 9x – 4x – 12y² – 18xy + 8xy – 3 + 6y – 6y`

`= (12x² – 18xy + 9x) – (4x – 6y + 3) + (8xy – 12y² + 6y)`

`= 3x(4x – 6y + 3) – (4x – 6y + 3) + 2y(4x – 6y + 3)`

`= (4x – 6y + 3)(3x + 2y – 1).`

Câu trả lời:

`12x² + 5x – 12y² + 12y – 10xy – 3`

`= 12x² + 9x – 4x – 12y² – 18xy + 8xy – 3 + 6y – 6y`

`= (12x² – 18xy + 9x) – (4x – 6y + 3) + (8xy – 12y² + 6y)`

`= 3x(4x – 6y + 3) – (4x – 6y + 3) + 2y(4x – 6y + 3)`

`= (4x – 6y + 3)(3x + 2y – 1).`

Thuy Nguyen · Answer

$12x² + 5x – 12y² + 12y – 10xy – 3$

$= 12x² + 9x – 4x – 12y² – 18xy + 8xy – 3 + 6y – 6y$

$= (12x² – 18xy + 9x) – (4x – 6y + 3) + (8xy – 12y² + 6y)$

$= 3x(4x – 6y + 3) – (4x – 6y + 3) + 2y(4x – 6y + 3)$

$= (4x – 6y + 3)(3x + 2y – 1).$

Câu trả lời:

$12x² + 5x – 12y² + 12y – 10xy – 3$

$= 12x² + 9x – 4x – 12y² – 18xy + 8xy – 3 + 6y – 6y$

$= (12x² – 18xy + 9x) – (4x – 6y + 3) + (8xy – 12y² + 6y)$

$= 3x(4x – 6y + 3) – (4x – 6y + 3) + 2y(4x – 6y + 3)$

$= (4x – 6y + 3)(3x + 2y – 1).$

Thuy Nguyen · Answer

12x²+ 5x - 12y² + 12y - 10xy - 3

= -(12x²+ 10xy + 3 -12x² - 5x - 12y)

Có

12y²+ 10xy + 3 - 12x²- 5x - 12y

= 18xy + 12y²- 6y - 12x²- 8xy + 4x - 9x - 6y + 3

= 6y (3x + 2y - 1) - 4 . x (3x + 2y - 1) - 3 . (3x + 2y - 1)

= (6y - 4x - 3) . (3x + 2y - 1)

Câu trả lời:

12x²+ 5x - 12y² + 12y - 10xy - 3

= -(12x²+ 10xy + 3 -12x² - 5x - 12y)

Có

12y²+ 10xy + 3 - 12x²- 5x - 12y

= 18xy + 12y²- 6y - 12x²- 8xy + 4x - 9x - 6y + 3

= 6y (3x + 2y - 1) - 4 . x (3x + 2y - 1) - 3 . (3x + 2y - 1)

= (6y - 4x - 3) . (3x + 2y - 1)