Respuesta :

Answer 64
Step by step exploration
3*4*4+4*4=48+16=64

Answer:

  • 64

Step-by-step explanation:

x = 4

Substitute x and calculate:

  • 3x² + 4x =
  • 3(4²) + 4(4) =
  • 48 + 16 =
  • 64