Question

Ajutati-ma please...Efectuati: (Semnul ^ inseamna la puterea a...)
(4^31 6 x 32^12 - 5 x 16^15):(8^21-5 x 8^20) - 1= ?

Answer 1

(4³¹+6 x 32¹²-5 x16¹⁵):(8²¹-5 x8²⁰)-1=
[(2²)³¹+2x3x(2⁵)¹²-5x(2⁴)¹⁵]:[(2³)²¹-5x(2³)²⁰]-1=
(2⁶²+2x3x2⁶⁰-5x2⁶⁰):(2⁶³-5x2⁶⁰)-1=
(2⁶²+3x2¹⁺⁶⁰-5x2⁶⁰):(2⁶³-5x2⁶⁰)-1=
(2⁶²+3x2⁶¹-5x2⁶⁰):(2⁶³-5x2⁶⁰)-1=
[2⁶⁰(2²+3x2-5)]:[2⁶⁰(2³-5)]-1=
[2⁶⁰(4+6-5)]:[2⁶⁰(8-5)]-1=
[2⁶⁰x5]:[2⁶⁰x3]-1=  simplificam cu 2⁶⁰
5/3-1=(5-3)/3=2/3=0,(6)