Respuesta :

the given expression is

[tex]\begin{gathered} =x^2+12x+36 \\ =x^2+6x+6x+36 \end{gathered}[/tex][tex]\begin{gathered} =x(x+6)+6(x+6) \\ =(x+6)(x+6) \\ =(x+6)^2 \end{gathered}[/tex]

so the answer is (x+6)^2

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