Respuesta :
[tex]\longrightarrow{\green{D.\:(x²+5)(x-3)}}[/tex]
[tex]\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}[/tex]
[tex] {x}^{3} - 3 {x}^{2} + 5x - 15[/tex]
Taking [tex]x²[/tex] as common from first two terms and 5 from last two terms, we have
[tex]➝ \: {x}^{2} \: (x - 3) + 5 \: (x - 3)[/tex]
Taking the factor [tex](x-3)[/tex] as common,
[tex]➝ \: ( {x}^{2} + 5)(x - 3)[/tex]
[tex]\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{♡}}}}}[/tex]