Question

3 la puterea 72 plus 2 ori 3 la puterea 73 plus 3 la puterea 74=???​

Answer 1

$\it 3^{72}+2\cdot3^{73}+3^{74}=3^{72}(1+6+9)=16\cdot3^{72}$

Answer 2

Răspuns:

3⁷²+2·3⁷³+3⁷⁴=

3⁷²(1+2·3+3²)=

3⁷²·16=

3⁷²·2⁴