Respuesta:
A = (x – 1)2 – (x + 2)2
A= 3x-3-(2x+4)
A= 3x-3-2x-4
A= x-7
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Respuesta:
A = (x – 1)2 – (x + 2)2
A= 3x-3-(2x+4)
A= 3x-3-2x-4
A= x-7