Решите пожалуйста задание B3. Created by justsunnyperson. algebra-ru

B₄=b₃*qb₅=b₃*q²b₆=b₃*q³{b₃+b₅= -20{b₄+b₆= -40{b₃ + b₃q²= -20{b₃q+b₃q³= -40{b₃(1+q²)= -20{b₃(q+q³)= -40{b₃= -20/(1+q²){b₃= -40/(q+q³)-20/(1+q²) = -40/(q+q³)-40/(2+2q²)= -40/(q+q³)2+2q²=q+q³q³-2q²+q-2=0q²(q-2)+(q-2)=0(q-2)(q²+1)=01) q-2=0 2) q²+1=0 q=2 q²= -1 нет решенийОтвет: 2. Реклама Реклама Новые вопросы в Алгебра помогите пожалуйста решить(((( Решите уравнение Помогите пожалуйста помогите пожалуйста Б) y²-25 В) ax-ay+5x-5y выполни деиствие 3x+2/4x-y+2x-1/y-4x 1,2х + 3,16=4 ПОЖАЛУЙСТА ПОМОГИТЕ!!! Розв'язати нерівності: 1. 3(x + 4) + 2(3x-2) > 5x - 3(2x+4); 2. 2x-6-5(2-x) ≤ 12-5(1-x). (а-в)²-а²+2ав-в²=???? помогите срочно надо помогите пожалуйста Предыдущий Следующий Реклама - это не так уж плохо Реклама - это не так уж плохо Понимаем - вы пришли сюда не за рекламой. Но она помогает нам предоставлять бесплатный доступ к Знаниям. Пожалуйста, внесите наш сайт в список разрешенных. ОК, разблокирую рекламу на Знаниях! 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Решите пожалуйста задание B3...

justsunnyperson @justsunnyperson

September 2021 1 43 Report

Решите пожалуйста задание B3

Answers & Comments

m11m

Verified answer

B₄=b₃*q
b₅=b₃*q²
b₆=b₃*q³

{b₃+b₅= -20
{b₄+b₆= -40

{b₃ + b₃q²= -20
{b₃q+b₃q³= -40

{b₃(1+q²)= -20
{b₃(q+q³)= -40

{b₃= -20/(1+q²)
{b₃= -40/(q+q³)

-20/(1+q²) = -40/(q+q³)
-40/(2+2q²)= -40/(q+q³)
2+2q²=q+q³
q³-2q²+q-2=0
q²(q-2)+(q-2)=0
(q-2)(q²+1)=0

1) q-2=0 2) q²+1=0
q=2 q²= -1
нет решений

Ответ: 2.