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256:128+3 la puterea 22 : 27 la puterea 7-1

Răspuns :

2+3^22:(3^3)^7-1=2+3^22:3^21-1=1+3=4
^=la puterea
256:128+3^22:27^7-1=
=2+3^22÷(3^3)^7-1
=2+3^22:3^21-1
=2+3^1-1
=2+3-1
=5-1
=4

sper ca te-am ajutat!