Прошу помогите пожалуйста...

mozggolovnoj @mozggolovnoj

August 2022 1 4 Report

Прошу помогите пожалуйста

Answers & Comments

alesyaperova

$1){x}^{2} - 26x + 133 = 0 \\ d = 676 - 532 = 144 = 12 \\ x1 = \frac{26 - 12}{2} = \frac{14}{2} = 7$

$x2 = \frac{26 + 12}{2} = \frac{38}{2} = 19$

$x1 + x2 = 7 + 19 = 26$

$x1 \times x2 = 7 \times 19 = 133$

$2) {x}^{2} - 7x - 30 = 0 \\ d = 49 + 120 = 169 = 13 \\ x1 = \frac{7 - 13}{2} = - \frac{6}{2} = - 3$

$x2 = \frac{7 + 13}{2} = \frac{20}{2} = 10$

$x1 + x2 = - 3 + 10 = 7 \\ x1 \times x2 = - 3 \times 10 = - 30$

$3) {x}^{2} - 18x + 45 = 0 \\ d = 324 - 180 = 144 = 12 \\ x1 = \frac{18 - 12}{2} = \frac{6}{2} = 3$

$x2 = \frac{18 + 12}{2} = \frac{30}{2} = 15$

$x1 + x2 = 3 + 15 = 18 \\ x1 \times x2 = 3 \times 15 = 45$

4)

${x}^{2} - 12x - 28 = 0 \\ d = 144 + 112 = 256 = 16 \\ x1 = \frac{12 - 16}{2} = - \frac{4}{2} = - 2$

$x2 = \frac{12 + 16}{2} = \frac{28}{2} = 14$

$x1 + x2 = - 2 + 14 = 12 \\ x1 \times x2 = - 2 \times 14 = - 28$

0 votes Thanks 0

More Questions From This User See All

mozggolovnoj August 2022 | 0 Ответы

zapishi oblast znacheniya funkcii dayu 32 balla

mozggolovnoj July 2022 | 0 Ответы

razlozhi na mnozhiteli kvadratnyj tryohchlen x220x99 pervym vvodi naibolshij ko

mozggolovnoj July 2022 | 0 Ответы

ch dopolnitelnye voprosy 1 po kakoj formule vychislyaetsya vremya t vremya s

mozggolovnoj July 2022 | 0 Ответы

proshu pomogite pozhalujstaea1f92d9e64795631400fddc093726ac 77851

mozggolovnoj July 2022 | 0 Ответы

storony ugla a kasayutsya okruzhnosti s centrom o radiusa r opredeli rasstoyanie oa117f04c1b450777f4e2e057af313c0d 1276

mozggolovnoj July 2022 | 0 Ответы

43x21 vvodi tochnyj otvet ne okruglyaj ego

mozggolovnoj July 2022 | 0 Ответы

pozhalujsta reshite kak mozhno bystreefbf523a8ce130c63761231180cdd7317 62954

mozggolovnoj October 2021 | 0 Ответы

x20 u etogo uravneniya kornem yavlyaetsya tolkox10 kornem yavlyaetsya tolkox

mozggolovnoj October 2021 | 0 Ответы

reshi uravnenie x43x2120

рекомендуемые вопросы

rarrrrrrrr August 2022 | 0 Ответы

o chem dolzhny pozabotitsya v pervuyu ochered vzroslye pri organizacionnom vyvoze n

danilarsentev August 2022 | 0 Ответы

est dva stanka na kotoryh vypuskayut odinakovye zapchasti odin proizvodit a zapcha

myachina8 August 2022 | 0 Ответы

najti po grafiku otnoshenie v3v1 v otvetah napisano 9 no nuzhno reshenie

ydpmn7cn6w August 2022 | 0 Ответы

Choose the correct preposition: 1.I am fond (out,of,from) literature. 2.where ar...

millermilena658 August 2022 | 0 Ответы

opredelite kak sozdavalas i kto sozdaval arabskoe gosudarstvo v kracii

MrZooM222 August 2022 | 0 Ответы

ch ajtmanov v rasskaze krasnoe yabloko ispolzuet metod rasskaz v rasskaze opi

timobila47 August 2022 | 0 Ответы

kakovo bylo naznachenie kazhdoj iz chastej vizantijskogo hrama pomogite pozhalujsta

ivanyyaremkiv August 2022 | 0 Ответы

pozhalujsta8b98a56c0152a07b8f4cbcd89aa2f01e 97513

sarvinozwakirjanova August 2022 | 0 Ответы

pomogite pozhalusto pzha519d7eb8246a08ab0df06cc59e9dedb 6631

Helpful Links

Политика конфиденциальности

Правила и условия

Контакты

Helpful Social

Copyright © 2024 SCHOLAR.TIPS - All rights reserved.