Question

Calculati
Va rog mult!!!!!

A. 2 la puterea 17 × 2 la puterea 21

B. 3 la puterea 45 × 3 la puterea 87 × 3 la puterea 55

C. 7 la puterea 19 ×. 7 la puterea 83 × 7

D. 2 la puterea 47 : 2 la puterea 39

Answer 1

Explicație pas cu pas:

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.

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

D.

${2}^{47} \div {2}^{39} = {2}^{47 - 39} = {2}^{8}$

Answer 2

Răspuns:

A- 2 la puterea 38

B- 3 la puterea 187

C- 7 la puterea 103

D- 2 la puterea 8