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X= o patrime la puterea -1 : ( doua treimi * 3 patrimi +1 ) . Repede !



Răspuns :

x=(1/4)⁻¹ :( 2/3 ·3/4+1                    )
x=4 : (1/2 +1 )
x=4 : 3/2
x=4 * 2/3 =8/3