Phân tích thành nhân tử 3x^2 – 3y^2 – 12x + 12y 07/12/2021 Bởi Alaia Phân tích thành nhân tử 3x^2 – 3y^2 – 12x + 12y
`3x^2 – 3y^2 – 12x + 12y` `= ( 3x^2 – 3y^2 ) – (12x – 12y)` `= 3( x^2 – y^2) – 12( x – y)` `= 3 ( x – y) ( x + y) – 12( x – y)` `= 3( x + y – 4) . ( x – y)` Bình luận
`3x^2-3y^2-12x+12y` `=(3x^2-3y^2)-(12x-12y)` `=3(x^2-y^2)-12(x-y)` `=3(x-y)(x+y)-12(x-y)` `=3(x-y)(x+y-4)` Bình luận
`3x^2 – 3y^2 – 12x + 12y`
`= ( 3x^2 – 3y^2 ) – (12x – 12y)`
`= 3( x^2 – y^2) – 12( x – y)`
`= 3 ( x – y) ( x + y) – 12( x – y)`
`= 3( x + y – 4) . ( x – y)`
`3x^2-3y^2-12x+12y`
`=(3x^2-3y^2)-(12x-12y)`
`=3(x^2-y^2)-12(x-y)`
`=3(x-y)(x+y)-12(x-y)`
`=3(x-y)(x+y-4)`