3a+5b+c+5a+b+2c= 4x-3y-4y+5x-14y-2x= 5a+3a2-3a+3b-5a2-7b+8b2= 7a+3a2b-3a+3b-5a2b-7b+8b2= resubido porque nadie me lo responde esta ves le pondre 25 porfa
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Respuesta:
tienes que sumar amiga y multiplicar