Question

punctul. j este scurt, repede

Answer 1

(7-5*1/4)^20:[3/2+(5/4)^2]^10
=(7-5/4)^20:(3/2+25/16)^10
=(23/4)^20:(49/16)^10
=23^20/4^20:49^10/16^10
=23^20/(2^2)^20:49^10/(2^4)^10
=23^20/2^40:49^10/2^40
=23^20/2^40*2^40/49^10
=23^20*1/49^10
=23^20/49^10
_________
* înmulțire
/ supra
^ la putere