Помогите, пожалуйста! Срочно 25^x

BearBy @BearBy

July 2022 1 5 Report

Помогите, пожалуйста! Срочно
25^x - 5^x =20

Answers & Comments

shakha2017

Verified answer

25^x - 5^x =20
5^2x-5^x=20
пусть будет:5^x=a;
тогда:5^2x=a^2
a^2-a=20
a^2-a-20=0
D=1+80=81
a1=(1-9)/2=-4
a2=(1+9)/2=5
тогда будет вот так:
1)a=5^x
2)-4=5^x(нет ответ)
3)5=5^x
x=1
ответ:x=1

1 votes Thanks 1

maksimalnaya skorost fotoelektronov vydelyayushihsya iz ceziya pri ego osveshenii lu

Answer

BearBy July 2022 | 0 Ответы

pomogite pozhalujsta24d592b1c8f749f6570a0995fc87b7ea 24143

Answer

BearBy August 2021 | 0 Ответы

zadanie 9 skolko zapyatyh 4567 nado postavit v sleduyushem predlozhenii nik

Answer

BearBy August 2021 | 0 Ответы

zadanie 10 najdite slozhnye bessoyuznye predlozheniya a kuda ne stupish vezde bum

Answer

BearBy August 2021 | 0 Ответы

pomogite pozhalujsta zamenite v predlozheniyah pryamuyu rech kosvennoj 1v komnatu

Answer

Answers & Comments

Verified answer

17 zadanie pozhalujsta8ea9e40c55401272a24f6c65b8cc469e 3364

pomogite pozhalujsta22e031e2c9c315981a94473a490d731d 39817

issledovat funkciyu s pomoshyu proizvodnoj i postroit ee grafik yx2 2x

maksimalnaya skorost fotoelektronov vydelyayushihsya iz ceziya pri ego osveshenii lu

pomogite pozhalujsta24d592b1c8f749f6570a0995fc87b7ea 24143

zadanie 9 skolko zapyatyh 4567 nado postavit v sleduyushem predlozhenii nik

zadanie 10 najdite slozhnye bessoyuznye predlozheniya a kuda ne stupish vezde bum

pomogite pozhalujsta zamenite v predlozheniyah pryamuyu rech kosvennoj 1v komnatu

рекомендуемые вопросы

Helpful Links

Helpful Social