Explicación paso a paso:
Área de un cuadrado =
[tex]l {}^{2} [/tex]
[tex]a = (4x + 3y) {}^{2} \\ a = (4x) {}^{2} + 2(4x)(3y) + (3y) {}^{2} \\ a = 16 {x}^{2} + 24xy + {9y}^{2} [/tex]
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Explicación paso a paso:
Área de un cuadrado =
[tex]l {}^{2} [/tex]
[tex]a = (4x + 3y) {}^{2} \\ a = (4x) {}^{2} + 2(4x)(3y) + (3y) {}^{2} \\ a = 16 {x}^{2} + 24xy + {9y}^{2} [/tex]