👤

(2.3+5)^2=
1+2+2^2=
3.(3^2+3^3)=
9^2.2003-81^2=​


Răspuns :

Răspuns:

1. 7,5^2=7,5×7,5=56,25

2. 1+2+2^2=1+2+4=7

3. 3^5=>243×3=729

4. 81×2003-6561=162.243-6561=155.682