Question

Calculeaza: c) 81^5:3^19+31^10*31^4:31^13+156-729:72+[(15^6)^4:3^23]:5^22

Answer 1

81^5:3^19+31^10*31^4:31^13+156-729:27+[(15^6)^4:3^23]:5^22=
3^20:3^19+3+156-729:27+[(3*5)^24:3^23]:5^22=
3+3+156-27+3^24*5^24:3^23:5^22=
135+3^24:3^23*5^24:5^22=
135+3*25=
135+75=210

729:72, cred ca este 729:27, pentru ca 729 nu se imparte fara rest la 72

Sper ca te-am ajutat