Question

25³:(2•5⁴-8•5³-9•5²)

Answer 1

25³:(2•625-8•125-9•25)=25³: (1250-1000-225)= 25³ :25= 15625:25=625

Answer 2

25³:(2•5⁴-8•5³-9•5²)=${5^{2}}^{3}=5^{6}$ deoarece se inmultesc puterile $5^{6}$:(2•5⁴-8•5³-9•5²)=Scoatem factor comun in paranteza pe 5 cu puterea cea mai mica adica 5²$5^{6}:5^{2}(2*5^{2}-8*5-9)=5^{4}(2*25-40-9)=5^{4}(50-40-9)=5^{4}*1=5^{4}=625$