Question

Scrie ca putere :
a) 2la puterea 9 ori 2 la puterea 11
b) 5 la puterea 3 ori 5 la puterea 12
c) 7la puterea 19 :7la puterea 11
d) 3 la puterea 23: 3 la puterea 12


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Answer 1

Răspuns:

a)

$2 {}^{9} \times {2}^{11 } = {2}^{9 + 11} = {2}^{20} \\ {5}^{3} \times {5}^{12} = {5}^{3 + 12} = {5}^{15} \\ {7}^{19} \div {7}^{11} = {7}^{19 - 11} = {7}^{8}$

${3}^{23} \div {3}^{12} = {3}^{23 - 12} = {3}^{11}$