Respuesta :

Step-by-step explanation:

You are going to distribute the x and the -3.

x(x+5) - 3(x+5)

x^2 + 5x -3x -15  (now combine like terms)

x^2 + 2x - 15

Answer:

x^2 +8x + 15

Step-by-step explanation:

(x+3) (x+5) = x(x+5) +3(x+5)

= x^2 +5x +3x+15

=x^2 +8x + 15