Toán phân tivhs đã thức thành nhân tử 9(x-2)^2-(y+3)^2 10/07/2021 By Lyla phân tivhs đã thức thành nhân tử 9(x-2)^2-(y+3)^2
Đáp án: $9(x – 2)² – (y + 3)² $ $= [3(x – 2)]² – (y + 3)² $ $= (3x – 6)² – (y + 3)² $ $= (3x – 6 – y – 3)(3x – 6 + y + 3) $ $= (3x – y – 9)(3x + y – 3) $ Trả lời
`9(x-2)^2-(y+3)^2` `=[3(x – 2)]² – (y + 3)²` `= (3x – 6 – y – 3)(3x – 6 + y + 3)` `= (3x – y – 9)(3x + y – 3)` Học tốt ! Trả lời
Đáp án:
$9(x – 2)² – (y + 3)² $
$= [3(x – 2)]² – (y + 3)² $
$= (3x – 6)² – (y + 3)² $
$= (3x – 6 – y – 3)(3x – 6 + y + 3) $
$= (3x – y – 9)(3x + y – 3) $
`9(x-2)^2-(y+3)^2`
`=[3(x – 2)]² – (y + 3)²`
`= (3x – 6 – y – 3)(3x – 6 + y + 3)`
`= (3x – y – 9)(3x + y – 3)`
Học tốt !