Respuesta :

Space

Answer:

48x⁷ - 64x + 9

Step-by-step explanation:

Step 1: Write out expression

4x(12x⁶ - 4²) + 9

Step 2: Evaluate exponent

4x(12x⁶ - 16) + 9

Step 3: Distribute

48x⁷ - 64x + 9

Answer:

223

Step-by-step explanation: