Question

reguli de calcul cu puteri

Answer 1

1)a^0=1
2)a^1=a
3)a la puterea b * a la puterea c=a la puterea b+c
4)a la puterea b / a la puterea c=a la puterea b-c
5)a^(-1)=1/a

^=la puterea
*=inmultire
/=impartire

Answer 2

$(a+b) ^{2} = a ^{2} +2ab+b ^{2}$