Respuesta :

Answer:

[tex]x=17[/tex]

Step-by-step explanation:

[tex](x+7)^{2} =18(18+14)[/tex]

[tex](x+7)^{2} =18(32)[/tex]

[tex](x+7)^{2} =576[/tex]

[tex]x+7=\sqrt{576} =24[/tex]

[tex]x=24-7=17[/tex]

[tex]---------[/tex]

hope it helps...

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