Question

1. Calculati:
2³-1=
3+3² +3³ =
6²³-6³² +6⁰ =
(5+ 7) = ​

Answer 1

Răspuns:

2³-1=8-1=7

3+3² +3³ =3(1+3+3²)=3×(1+3+9)=3×13=39

6²³-6³² +6⁰ = 6²³(1-6⁹)+1

5+ 7= ​12

Answer 2

2^3-1=8-1=7

3^2+3^3=(1+3+3)^2=3×(1+3+9)=3×13=39

6^23-6^32+6^0=6^23(1-6^9)+1

5+7=12