Respuesta :

derrob4983

Answer:

16x2+8x−1

Step-by-step explanation:

x2+8x+15x2−1

=x2+8x+15x2+−1

Combine Like Terms:

=x2+8x+15x2+−1

=(x2+15x2)+(8x)+(−1)

=16x2+8x+−1