Автор - Lyavs

решить уравнение 
 7^{x-1} - 6^{2-2x} =0

Ответ

Автор - uekmyfhfp
7^x * 7^(-1) - 6^2 * 6^(-2x) = 0;
7^x /7 - 36/ 36^x = 0;
(36^x*7^x - 36* 7) / 7*36^x  =0;
(36 *7)^x - 36 *7 =0;
(36*7)^x = (36*7)^1;
x = 1

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