Respuesta :

[tex]\begin{gathered} x^2-28x-60 \\ \mleft(x^2+2x\mright)+\mleft(-30x-60\mright) \\ x\mleft(x+2\mright)-30\mleft(x+2\mright) \\ \mleft(x+2\mright)\mleft(x-30\mright) \end{gathered}[/tex]

answer: the second one