Question

пожалуйста
алгебра 7 класс

Answer 1

$1. \ a) { ({7}^{2}) }^{5} = {7}^{10} \ b) { ({3}^{4} )}^{3} = {3}^{12} \ c) { ({11}^{10} )}^{12} = {11}^{120} \ d) { ({0.3}^{15} )}^{4} = {0.3}^{60} \ e) { { ((({3})^{4} )}^{3}) }^{2} = {3}^{24} \ 5. \ a) {2}^{3} times {3}^{3} = {6}^{3} \ b) {7}^{14} times {25}^{7} = {7}^{14} times {5}^{14} = {35}^{14} \ c) {8}^{12} times {4}^{18} = {2}^{36} times {2}^{36} = {4}^{36} \ 7. \ a) frac{ {2}^{8} times {2}^{21} }{ {2}^{28} } - 2 = frac{ {2}^{29} }{ {2}^{28} } - 2 = 2 - 2 = 0 \ b) frac{ {21}^{3} }{ {3}^{4} times 49 } = frac{ {7}^{3} times {3}^{3} }{ {3}^{4} times {7}^{2} } = frac{7}{3}$