Urgent!!!!!!! am nevoie azi dau coroana si ma abonez cine il face mai repede

Răspuns:
[(2/3)⁵]⁴:(2/3)¹⁷=(2/3)⁵°4:(2/3)¹⁷
(2/3)²⁰:(2/3)¹⁷=
(2/3)²⁰⁻¹⁷=(2/3)³
Explicație pas cu pas: