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-[2x-3X+2+3X-1]
-2X+3X-2-3X+1
(-1) -2X-1
2X+1 Respuesta
B" u+(-u-v)
u-u-v
-v Respuesta
C" (m-n) si m= 10 n=8
(10-8)=2 Respuesta
Espero que te sirva