Question

a,b,c,(d, la dorinta.)​

Answer 1

Răspuns:

b)

$({2}^{6} ) ^{2} \div {2}^{9} = {2}^{12} \div {2}^{9} = {2}^{12 - 9} = {12}^{3}$

c)

$({15}^{3} \times {15}^{7}) \div {15}^{9} = {15}^{3 + 7} \div {15}^{9} = {15}^{10} \div {15}^{9} = {15}^{10 - 9} = {15}^{1} = 15$

d)

$({3}^{2}) ^{5} \div ( {3}^{4} \times {3}^{3} ) = {3}^{10} \div {3}^{7} = {3}^{3} = 27$

a) 5(3)•4(3)=20(3)