Question

Buna! Ma puteti ajuta va rogg​

Answer 1

Răspuns:

c) 4

Explicație pas cu pas:

${3}^{6} \cdot {9}^{2} \cdot 27 = {3}^{2x + 5}$

${3}^{6} \cdot {( {3}^{2} )}^{2} \cdot {3}^{3} = {3}^{2x + 5}$

${3}^{6} \cdot {3}^{4} \cdot {3}^{3} = {3}^{2x + 5}$

${3}^{6 + 4 + 3} = {3}^{2x + 5}$

${3}^{13} = {3}^{2x + 5}$

$2x + 5 = 13$

$2x = 8 \implies x = 4$