решите через дискриминант: х^2-10х-39=0. Created by kyst21. algebra-ru

решите через дискриминант: х^2-10х-39=0...

kyst21 @kyst21

July 2022 1 11 Report

решите через дискриминант: х^2-10х-39=0

Answers & Comments

WhatYouNeed

Verified answer

$x^2-10x-39=0\\D=(-10)^2-(-4)*(1)*(-39)=100+156=256=16^2\\x=\frac{-(-10)б\sqrt{D} }{2*1}=\frac{10б\sqrt{16^2} }{2} =\\=\frac{10б16}{2}\\x_1=(26)/2=13\\x_2=(-6)/2=-3$

Ответ: х={-3;13}

4 votes Thanks 7

osushestvite sleduyushie prevrasheniya cu cuo cuso4 cuoh2 cuo

Answer

kyst21 July 2022 | 0 Ответы

reshite cherez diskriminant 3h2 6h 7086f9fc5e2178f22799b080fe986aa39b 51192

Answer

kyst21 July 2022 | 0 Ответы

napishite molekulyarnoe polnoe i sokrashyonnoe ionnye uravneniya dlya etoj reakciih2

Answer

kyst21 July 2022 | 0 Ответы

Answers & Comments

Verified answer

osushestvite sleduyushie prevrasheniya cu cuo cuso4 cuoh2 cuo

reshite cherez diskriminant 3h2 6h 7086f9fc5e2178f22799b080fe986aa39b 51192

napishite molekulyarnoe polnoe i sokrashyonnoe ionnye uravneniya dlya etoj reakciih2

reshite cherez diskriminant u2 11u 800

reshite cherez diskriminant 8h 2h23018fe090795f3048520e296e31313331b 15951

reshite cherez diskriminant h2 8h150

reshite cherez diskriminant 3h22h0

reshite cherez diskriminant 4h24h 1

reshite cherez diskriminant 8h 2h230

reshite cherez diskriminant 3h2 6h 70c974c4752b503b48b3f86da5fa9df041 89947

рекомендуемые вопросы

Helpful Links

Helpful Social