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МатематикаРешебник по алгебре 7 класс Макарычев ФГОС Задание 392
Задание 392
\[\boxed{\text{392.}\text{\ }еуроки - ответы\ на\ пятёрку}\]
| \[n\] | \[1\] | \[2\] | \[3\] | \[4\] | \[5\] | \[6\] | \[7\] | \[8\] | \[9\] | \[10\] |
|---|---|---|---|---|---|---|---|---|---|---|
| \[2^{n}\] | \[2\] | \[4\] | \[8\] | \[16\] | \[32\] | \[64\] | \[128\] | \[256\] | \[512\] | \[1024\] |
| \[3^{n}\] | \[3\] | \[9\] | \[27\] | \[81\] | \[243\] | \[729\] | \[2187\] | \[6561\] | \[19683\] | \[59049\] |
\[\boxed{\text{392\ (392).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[\textbf{а)}\ если\ x = - 9:\]
\[\ x^{2} = ( - 9)^{2} = 81;\ \ \]
\[- x^{2} = - ( - 9)^{2} = - 81;\ \ \]
\[( - x)^{2} = 9^{2} = 81.\]
\[если\ x = 9:\]
\[\ x^{2} = (9)^{2} = 81;\ \ \]
\[- x^{2} = - 9^{2} = - 81;\ \ \]
\[( - x)^{2} = ( - 9)^{2} = 81.\]
\[если\ x = - 6:\]
\[\ x^{2} = ( - 6)^{2} = 36;\ \ \]
\[- x^{2} = - ( - 6)^{2} = - 36;\ \]
\[\ ( - x)^{2} = 6^{2} = 36.\]
\[если\ x = 6:\]
\[\ x^{2} = (6)^{2} = 36;\ \ \]
\[- x^{2} = - 6^{2} = - 36;\ \ \]
\[( - x)^{2} = {( - 6)}^{2} = 36.\]
\[если\ x = - 2:\]
\[\ x^{2} = ( - 2)^{2} = 4;\ \ \]
\[- x^{2} = - ( - 2)^{2} = - 4;\ \ \]
\[( - x)^{2} = 2^{2} = 4.\]
\[если\ x = 2:\]
\[\ x^{2} = (2)^{2} = 4;\ \ \]
\[- x^{2} = - 2^{2} = - 4;\ \ \]
\[( - x)^{2} = ( - {2)}^{2} = 4.\]
\[\textbf{б)}\ если\ x = - 4:\]
\[x^{3} = ( - 4)^{3} = - 64;\ \ \ \ \]
\[- x^{3} = - ( - 4)^{3} = 64;\ \ \]
\[\ ( - x)^{3} = 4^{3} = 64.\]
\[если\ x = 4:\]
\[x^{3} = (4)^{3} = 64;\ \ \ \ \]
\[- x^{3} = - 4^{3} = - 64;\ \ \ \]
\[( - x)^{3} = ( - {4)}^{3} = - 64.\]
\[если\ x = - 3:\]
\[x^{3} = ( - 3)^{3} = - 27;\ \ \ \]
\[\ - x^{3} = - ( - 3)^{3} = 27;\ \ \ \]
\[( - x)^{3} = 3^{3} = 27.\]
\[если\ x = 3:\]
\[x^{3} = (3)^{3} = 27;\ \ \ \ \]
\[- x^{3} = - 3^{3} = - 27;\ \ \]
\[\ ( - x)^{3} = ( - 3)^{3} = - 27.\]
\[если\ x = - 1:\]
\[x^{3} = ( - 1)^{3} = - 1;\ \ \ \ \]
\[- x^{3} = - ( - 1)^{3} = 1;\ \ \]
\[\ ( - x)^{3} = 1^{3} = 1.\]
\[если\ x = 1:\]
\[x^{3} = (1)^{3} = 1;\ \ \ \]
\[\ - x^{3} = - 1^{3} = - 1;\ \ \]
\[\ ( - x)^{3} = ( - 1)^{3} = - 1.\]
