Question

Va roggg multt Ex 21 !!!!!!

Answer 1

A) =12^10 (16-4)÷12^11=12^10 ×12÷12^11=12^(10+1-11)=12^0=1

B)=15^2-15 (14+1)÷15^2=15^2-15×15÷15^2=15^2-1=225-1=224

C)=10^3 ×85-10^3×61-10^3×3=10^3 (85-61-3)=10^3×13=13000

D)=5^11-5^10 (6-2)=5^11-5^10×4=5^10 (5-4)=5^10