(64x^3+y^2/8): (16x^2 -2xy+y2/4)

Đáp án:

 `(64x^3+(y^2)/8):(16x^2-2xy+ (y^2)/4)`

`= [(4x)^3+ (y/2)^3]:(16x^2-2xy+ (y^2)/4)`

`=[(4x+y/2)( (4x)^2 - 4x*y/2 +(y/2)^2)]:(16x^2-2xy+ (y^2)/4)`

`=[(4x+y/2)(16x^2 -2xy +(y^2)/4)]:(16x^2-2xy+ (y^2)/4)`

`=4x+y/2`