Respuesta :

profereyes12122

Answer:

[tex]A=4x^{2} +x[/tex]

Step-by-step explanation:

[tex]A = (3x)(2x+1) -2x(x+1)[/tex]

[tex]=6x^{2} +3x-2x^{2} -2x[/tex]

[tex]=4x^{2} +x[/tex]

Hope this helps

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