Respuesta :
Grouping pairs of terms, you have
(x³ +5x²) -(6x +30)
Removing common factors from each group, you have
x²(x +5) -6(x +5)
(x³ +5x²) -(6x +30)
Removing common factors from each group, you have
x²(x +5) -6(x +5)