Question

a) 7la puterea 5*7la puterea 6*7la puterea 7=? b) 9 la puterea 41*9la puterea 2 =?

Answer 1

$a) {7}^{5} \times {7}^{6} \times {7}^{7} = {7}^{5 + 6 + 7} = {7}^{18}$

$b) {9}^{41} \times {9}^{2} = {9}^{41 + 2} = {9}^{43}$

Answer 2

a)  7⁵ x 7⁶ x 7⁷ = 7 ⁽ ⁵ ⁺ ⁶ ⁺ ⁷ ⁾  = 7¹⁸  

b)  9⁴¹ x 9² = 9 ⁽ ⁴¹ ⁺ ² ⁾  = 9⁴³