Question

Ajutor!!!!!Repede !!!!!!!! Dau coroană!!!!!!!​

Answer 1

Răspuns:

a.

${2}^{17} \times {2}^{21} = {2}^{17 + 21} = {2}^{38}$

b.

${3}^{45} \times {3}^{87} \times {3}^{55} = {3}^{45 + 87 + 55} = {3}^{187}$

c.

${7}^{19} \times {7}^{83} \times {7}= {7}^{19 + 83 +1} = {7}^{103}$