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Anton3681579942
@Anton3681579942
July 2022
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Помогите пожалуйста!!
3тий вариант
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Heyksuheyhey
1) a) = 6a + 18 + 8a² + 24a = 8a² + 30a +18
б) = 12a + 4a² - 15a² - 5a³ = -5a³ - 11a² + 12a = -(5a³ + 11a² - 12a)
в) = 56 - 32x - 21x + 12x² = 12x² -53x + 56
г) = -9x + 12x - 12x + 16 = -9x + 16
2) а) = 9a - (8a + 2a² + 4 + a) = 9a - 9a + 2a² + 4 = 2a² + 4 = 2(a² + 2)
б) = 3a³ + 12a + 18a² - 2a² - 3a³ = 16a² + 12a = 4a(4a + 3)
в) = 3 - x + 6x - 2x² + 3 - 3x - 2x + 2x² = 6
г) = 2x² - 4x - 6x + 12 - (2x² - 6x - 4x + 12) = 2x² - 10x + 12 - 2x² +10x - 12 = 0
3) а) = 5x(x - 3)
б) = (x - 4) · (x² - 2)
в) = (4 - 3x) · (x - 6)
г) = -6(6 - x) + x(6 - x) = (x - 6) · (6-x)
4) а) = 4(x - 5) + 3x(x - 5) = (4 + 3x) · (x - 5)
б) = 4x - 8 - x² + 2x = 4(x - 2) - x(x - 2) = (4 - x) · (x - 2)
в) = 2x²(x + 3) - 3(x + 3) = (2x² - 3) · (x + 3)
г) x²(x - 7) - 3(x - 7) = (x² - 3) · (x - 7)
0 votes
Thanks 1
Heyksuheyhey
3 и 4 сейчас допишу
Anton3681579942
ок
Anton3681579942
4 где
Heyksuheyhey
нашёл?
Anton3681579942
нет
Heyksuheyhey
всё в решении, и 1, и 2, и 3, и 4
Heyksuheyhey
ты о 4 варианте или о 4 задании?
Anton3681579942
cпc
Anton3681579942
4 задании
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Answers & Comments
б) = 12a + 4a² - 15a² - 5a³ = -5a³ - 11a² + 12a = -(5a³ + 11a² - 12a)
в) = 56 - 32x - 21x + 12x² = 12x² -53x + 56
г) = -9x + 12x - 12x + 16 = -9x + 16
2) а) = 9a - (8a + 2a² + 4 + a) = 9a - 9a + 2a² + 4 = 2a² + 4 = 2(a² + 2)
б) = 3a³ + 12a + 18a² - 2a² - 3a³ = 16a² + 12a = 4a(4a + 3)
в) = 3 - x + 6x - 2x² + 3 - 3x - 2x + 2x² = 6
г) = 2x² - 4x - 6x + 12 - (2x² - 6x - 4x + 12) = 2x² - 10x + 12 - 2x² +10x - 12 = 0
3) а) = 5x(x - 3)
б) = (x - 4) · (x² - 2)
в) = (4 - 3x) · (x - 6)
г) = -6(6 - x) + x(6 - x) = (x - 6) · (6-x)
4) а) = 4(x - 5) + 3x(x - 5) = (4 + 3x) · (x - 5)
б) = 4x - 8 - x² + 2x = 4(x - 2) - x(x - 2) = (4 - x) · (x - 2)
в) = 2x²(x + 3) - 3(x + 3) = (2x² - 3) · (x + 3)
г) x²(x - 7) - 3(x - 7) = (x² - 3) · (x - 7)