Respuesta :

Onoriodefelix

Answer:

42

Step-by-step explanation:

2x^3 - 4x

If x = 3 , plug the value into the expression

2(3)^3 - 4 x 3

2(3 x 3 x 3 ) - 12

2(27) - 12

54 - 12 = 42

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