ПОМОГИТЕ РЕШИТЬ СИСТЕМУ: ху=350 (х-5)(у+10)=480. Created by pakajrinovt697. algebra-ru

350+10x-5y-50=48010x-5y=1805y=10x-180 │:5y= 2x-362x-36= │∙x2-36x=350 │:2-18x-175=0D= 324-4∙(-175) = 324 + 700 = 1024

ПОМОГИТЕ РЕШИТЬ СИСТЕМУ: ху=350 (х-5)(у+10)=480...

July 2022 1 4 Report

ПОМОГИТЕ РЕШИТЬ СИСТЕМУ:

ху=350
(х-5)(у+10)=480

Answers & Comments

nazarrisd $\left \{ {{xy=350} \atop {xy+10x-5y-50=480}} \right.$
350+10x-5y-50=480
10x-5y=180
5y=10x-180 │:5
y= 2x-36
2x-36= $\frac{350}{x}$ │∙x
2 $x^{2}$ -36x=350 │:2
$x^{2}$ -18x-175=0
D= 324-4∙(-175) = 324 + 700 = 1024
$\sqrt{D}=32$
$x_{1}= \frac{18+32}{2}= \frac{50}{2} =25$
$x_{2} = \frac{18-32}{2} = -\frac{14}{2} = -7$
$y_{1} = \frac{350}{25}= \frac{70}{5}= 14$
$y_{2} = - \frac{350}{7} = - \frac{50}{1} = -50$

0 votes Thanks 1

Answers & Comments

on skazal chto ne priedet sintaksicheskij razbor

opredelite tip pridatochnogo ya ne znayu gde granica mezh tovarishem i drugom t

x2 x6 pomogite pozhalujsta reshit uravnenie

xyxy skolko budet

ispolzujte slova v podhodyashej forme new lands have always attracted people so

sostavte pozhalujsta shem predlozhenij 1 kogda pod zharkim solncem posedeyut i po

pomogite najti uskorenie 1 h4t 5t2 2 h6 3tt2

рекомендуемые вопросы

Helpful Links

Helpful Social