Выполните преобразование по соответствующей формуле: (5а-2)^2 (2х+9)^2 (6y-1)^2 ...

ratnikova2000 @ratnikova2000

July 2022 1 21 Report

Выполните преобразование по соответствующей формуле:
(5а-2)^2
(2х+9)^2
(6y-1)^2
Заранее спасибо

Answers & Comments

sebrithien

$\displaystyle \tt (5a-2)^2=(5a)^2-2\cdot5a\cdot2+2^2=\bold{25a^2-20a+4}\\\displaystyle \tt (2x+9)^2=(2x)^2-2\cdot2x\cdot9+9^2=\bold{4x^2-36x+81}\\\displaystyle \tt (6y-1)^2=(6y)^2-2\cdot6y\cdot1+1^2=\bold{36y^2-12y+1}$

Использованные формулы при решении:

$\displaystyle \tt (a-b)^2=a^2-2ab+b^2\\\displaystyle \tt (a+b)^2=a^2+2ab+b^2$

3 votes Thanks 6

balgynabilhajrova прет

zhenya razrezal piccu na 8 chastej zatem on razrezal odin iz kuskov eshe raz na 8 ch3bebd614405f8d6eed0de6bdde55b831 12225

Answer

ratnikova2000 July 2022 | 0 Ответы

na stene visyat chasy s kukushkoj mehanicheskaya ptichka kazhdyj chas izdaet ku ku st7ed1f64beaa743f69903177bf986fb1b 31579

Answer

ratnikova2000 July 2022 | 0 Ответы

na stole 90 listov bumagi za kazhdye 5 sekund mozhno poschitat 5 listov skolko

Answer

ratnikova2000 July 2022 | 0 Ответы

nazovite trete po schetu chislo obladayushee temi zhe svojstvami chto i chislo izob

Answer

ratnikova2000 July 2022 | 0 Ответы

vypolnite preobrazovanie po sootvetstvuyushej formule 5a 22 2h92 6y 12a6e4317021c37ff6829ed44d9265a6be 39498

Answer

ratnikova2000 July 2022 | 0 Ответы

vypolnite preobrazovanie po sootvetstvuyushej formule 2y2 a 22 x 122

Answer

Answers & Comments

zhenya razrezal piccu na 8 chastej zatem on razrezal odin iz kuskov eshe raz na 8 ch3bebd614405f8d6eed0de6bdde55b831 12225

na stene visyat chasy s kukushkoj mehanicheskaya ptichka kazhdyj chas izdaet ku ku st7ed1f64beaa743f69903177bf986fb1b 31579

na stole 90 listov bumagi za kazhdye 5 sekund mozhno poschitat 5 listov skolko

nazovite trete po schetu chislo obladayushee temi zhe svojstvami chto i chislo izob

25 belki za 25 minuty sedayut 25 oreha skolko orehov sedyat 10 belok za 10

kak pishetsya chislo 45 celyhpozhalujsta

slovo busheval morfemnyj razbor pozhalujsta dayu 25 ballov

snegovaya odnokorennye slova s suffiksom ov

vypolnite preobrazovanie po sootvetstvuyushej formule 5a 22 2h92 6y 12a6e4317021c37ff6829ed44d9265a6be 39498

vypolnite preobrazovanie po sootvetstvuyushej formule 2y2 a 22 x 122

рекомендуемые вопросы

Helpful Links

Helpful Social