Respuesta :

Answer:

12x

Step-by-step explanation:

3x × 4= 12x

3x + 3x + 3x + 3x = 12x

3 x x×4

3 x x×4 = 3 x^2×4:

3 x^2×4

Simplify the following:

3×4 = 12:

Answer: 12 x^2

Step-by-s Answer: