Question

va roooog , multumesc . de la clasa a va​

Answer 1

Explicație pas cu pas:

a)

${2}^{17} \times {2}^{18} - {2}^{34} \times 2 = {2}^{17 + 18} - {2}^{34 + 1} = {2}^{35} - {2}^{35} = 0$

b)

${(29 - 2 \times 7)}^{2} \times {15}^{20} - {15}^{22} = {(29 - 14)}^{2} \times {15}^{20} - {15}^{22} = {15}^{2} \times {15}^{20} - {15}^{22} = {15}^{2 + 20} - {15}^{22} = {15}^{22} - {15}^{22} = 0$

c)

${(12 - 3)}^{2} \times {(6 + 3)}^{18} - {9}^{20} = {9}^{2} \times {9}^{18} - {9}^{20} = {9}^{2 + 18} - {9}^{20} = {9}^{20} - {9}^{20} = 0$

d)

${( {4}^{2} : {3}^{2} )}^{2} \times {4}^{18} : {256}^{5} = {4}^{4} : {3}^{4} \times {4}^{18} : {( {4}^{4} )}^{5} = {4}^{4 + 18} : {3}^{4} : {4}^{20} = {4}^{22 - 20} : {3}^{4} = {4}^{2} : {3}^{4} = \frac{16}{81}$