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Dascha852
@Dascha852
August 2022
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Помогите срочно 8 класс
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Дарья508
a) 2p
⁴
+ 7p
²
- 8p
²
- 28 = 2p
⁴
- p
²
- 28
b) 8n
²
- 6n
³
- 12n + 9n
²
+ 4 - 3n = 17n
²
- 6n
³
+ 4 - 15n
c) 2a
⁴
+ a
³
- a
²
- 8a
³
- 4a
²
+ 4a + 10a
²
+ 5a - 5 = 2a
⁴
- 7a
³
+ 5a
²
+ 9a - 5
d) (a
²
+ 7a)(9a - 4) = 9a
³
- 4a
²
+ 63a
²
- 28a = 9a
³
+ 59a
²
- 28a
e)(x
²
+x - 20)( 6 - x) = 6x
²
- x
³
+ 6x -x
²
- 60 + 20x = 5x
²
- x
³
+ 26x - 120
УДАЧИ ВАМ!!!!!!!!
2 votes
Thanks 1
Дарья508
ОТМЕТЬ ЛУЧШИМ!!!))))
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Answers & Comments
b) 8n² - 6n³- 12n + 9n² + 4 - 3n = 17n² - 6n³ + 4 - 15n
c) 2a⁴ + a³ - a² - 8a³ - 4a² + 4a + 10a² + 5a - 5 = 2a⁴ - 7a³ + 5a² + 9a - 5
d) (a² + 7a)(9a - 4) = 9a³ - 4a² + 63a² - 28a = 9a³ + 59a² - 28a
e)(x² +x - 20)( 6 - x) = 6x² - x³ + 6x -x² - 60 + 20x = 5x² - x³ + 26x - 120
УДАЧИ ВАМ!!!!!!!!