Помогите решить:
1) 3^x - 3^(x-2) = 72
2) log3(x^2 -7x+15) = 2
3)3^(x^2-7x+10)>3^-2
4)3^(x-1) + 3^(x-2) + 3^(x-3) =3159
1) 3^x - 3^(x-2) = 72
2) log3(x^2 -7x+15) = 2
3)3^(x^2-7x+10)>3^-2
4)3^(x-1) + 3^(x-2) + 3^(x-3) =3159
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Решение смотри на фотографии