Respuesta :
Step-by-step explanation:
(x+4)(x²+5x+5)
= (x³+5x²+5x+4x²+20x+20)
= x³+9x²+25x+20
Answer:
Step-by-step explanation:
(x+4)(x²+5x+5) =
x×x²+x×5x+5x+4x²+4×5x+4×5 =
x³+5x²+4x²+20x+40 =
x³+9x²+20x+40
Step-by-step explanation:
(x+4)(x²+5x+5)
= (x³+5x²+5x+4x²+20x+20)
= x³+9x²+25x+20
Answer:
Step-by-step explanation:
(x+4)(x²+5x+5) =
x×x²+x×5x+5x+4x²+4×5x+4×5 =
x³+5x²+4x²+20x+40 =
x³+9x²+20x+40