Respuesta :

mhanifa

Answer:

  • D) 8

Step-by-step explanation:

Given trinomial:

  • x² - bx + 16

It has two perfect squares  and a variable with negative coefficient.

It can be representing a:

  • (m - n)² = m² - 2mn + n²

If we substitute m with x and n with 4,  we'll get 2mn = 2*x*4 = 8x.

This gives us b = 8

  • (x - 4)² = x² - 8x + 16