Respuesta :

is a square, so it has four equal sides, so the width is 5x + 2 long and the lenght is also 5x + 2 long, so length*width, namely the area will be,


[tex] \bf A=(5x+2)(5x+2)\implies A=\stackrel{FOIL}{25x^2+20x+4} [/tex]

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