Respuesta :

They are the same: distributing the 4, we have

[tex]4(3+x) = 4\cdot 3 + 4\cdot x[/tex]

And multiplying by 4 means exactly to sum four times the same thing:

[tex]4\cdot 3 = 3+3+3+3,\quad 4\cdot x=x+x+x+x[/tex]

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