`(2x+3y)^2`
`=(2x)^2+2.2x.3y+(3y)^2`
`=4x^2+12xy+9y^2`
`(4/3x-3/2y)^2`
`=(4/3x)^2-2.4/3x.3/2y+(3/2y)^2`
`=16/9x^2-4xy+9/6y^2`
`25x^2-16y^2`
`=(5x)^2-(4y)^2`
`=(5x-4y)(5x+4y)`
`(2x+5y)^3`
`=(2x)^3+3.4x^2.5y+3.4x.25y^2+(5y)^3`
`=8x^3+60x^2y+300xy^2+125y^3`
`(3x-2y)^3`
`=(3x)^3-3.9x^2.2y+3.3x.4y^2-(2y)^3`
`=27x^3-54x^2.y+36xy^2-8y^3`
`125x^3+8`
`=(5x)^3+2^3`
`=(5x+2)(25x^2+10x+4)`
Cho mk xin hay nhất please
Thank you
