Question

Vă rog mult ex 9 urgent!
Dau coroană!

Answer 1

Explicație pas cu pas:

Gata coronita plssssss

Answer 2

Răspuns:

9)a.(16*12^10-4*12^10):12^11=12^10*(16-4):12^11=12^10*12:12^11=12^11:12^11=1

b.15^2-(14*15+15):15^2=15^2-15*(14+1):15^2=15^2-15*15:15^2=15^2-1=225-1=224

c.10^3*85-10^3*61-3000=10^3*85-10^3*61-3*10^3=10^3*(85-61-3)=10^3*21=21*1000=21000

d.5^11-(6*5^10-2*5^10)=5^11-5^10*(6-2)=5^11-5^10*4=5^10*(5-4)=5^10*1=5^10

Explicație pas cu pas: