помогите пж алгебра 7 класс . Created by lazarevaan360. algebra-ru

Ответ:1) Не знаю!2) 4² - R² = (4 - R) × (4+R)3) 20² - m² = (20-m) × (20+m)4) t² - 15² = (t-15) × (t+15)5)6) 7) 5² x² - 4 = 5² x² - 2² = (5x)² - 2² = (5x-2) × (5x+2)8) Объяснение:Вот

помогите пж алгебра 7 класс ...

lazarevaan360 @lazarevaan360

August 2022 1 7 Report

помогите пж алгебра 7 класс

Answers & Comments

kaldybekaazhan

Ответ:

1) Не знаю!

2) 4² - R² = (4 - R) × (4+R)

3) 20² - m² = (20-m) × (20+m)

4) t² - 15² = (t-15) × (t+15)

$\frac{169}{100} - b {}^{2} = \frac{1}{100} \times (169 - 100b {}^{2}) = \frac{1}{100 } \times (13 - 10b) \times 13 + 10b$

$\frac{1}{81} \times (81y {}^{2} - 61)$

7) 5² x² - 4 = 5² x² - 2² = (5x)² - 2² = (5x-2) × (5x+2)

$\frac{1}{36} \times (25 - 2304y {}^{2} ) = \frac{1}{36} \times (5 - 48y) \times (5 + 48y)$

Объяснение:

Вот

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