Giải thích các bước giải:
`sqrt(3x+8)-sqrt(3x+5)=sqrt(5x-4)-sqrt(5x-7)`
`=>sqrt(3x+8)+sqrt(5x-7)=sqrt(3x+5)+sqrt(5x-4)`
`=>3x+8+5x-7-2sqrt((3x+8)(5x-7))=3x+5+5x-4-2sqrt((3x+5)(5x-4))`
`=>2sqrt((3x+8)(5x-7))=2sqrt((3x+5)(5x-4))`
`=>(3x+8)(5x-7)=(3x+5)(5x-4)`
`=>15x^2-21x+40x-56=15x^2-12x+25x-20`
`=>19x-56=13x-20`
`=>19x-13x=56-20`
`=>6x=36`
`=>x=6`