Respuesta :

Qpid
x(x+1) 1(x+4)
x^2+x+x+4
x^2+2x+4
ricchad

Answer:

x² + 5x + 4

Step-by-step explanation:

(x + 1) (x + 4)

apply the FOIL method

xx + (x * 4) + (1 * x) + (1 * 4)

xx + 4x + (1 * x) + (1 * 4)  

xx + 4x + 1x + 4

x² + 5x + 4