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win13
@win13
August 2022
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Помогите много балов срочно вариант 1 срочно
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allegefickt
1.
а) 4a² + 4ab + b² = (2a + b)²
б) 25x² - 10x + 1 = (5x - 1)²
в) a² + 9c² + 6ac = a² + 6ac + 9c² = (a + 3c)²
г) a² + ab + b² = ( a + b)²
_________________________________________________________
2.
а) 16x² + 8ху + y² = (4x + y )²
б) 49 -14х + x² = (7 - x)²
в) a² + 18a + 81 =(a + 9)²
г) 4 - 12x + 9x² = (2 - 3x)²
_________________________________________________________
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win13
чучуть мог по раньше ? :)
win13
:)
VictorMin
Verified answer
N1
a) 4a^2 + 4ab + b^2 = (2a + b)^2
б) 25x^2 - 10x + 1 = (5x - 1)^2
в) a^2 + 9c^2 + 6ac = a^2 + 6ac + 9c^2 = (a + 3c)^2
г)
a^2 + ab + b^2 = (
a + b)^2
N2
а) 16x^2 + * + y^2 = 16x^2 + 8xy + y^2 = (4x + y )^2 ; * = 8xy
б) 49 - * + x^2 = 49 - 14x + x^2 = (7 - x)^2 ; * = 14x
в) a^2 + 18a + * = a^2 + 18a + 81 = ( a + 9) ^2 ; * = 81
г) * - 12x + 9x^2 = 4 - 12x + 9x^2 = (2 - 3x)^2 ; * = 4
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Answers & Comments
а) 4a² + 4ab + b² = (2a + b)²
б) 25x² - 10x + 1 = (5x - 1)²
в) a² + 9c² + 6ac = a² + 6ac + 9c² = (a + 3c)²
г) a² + ab + b² = ( a + b)²
_________________________________________________________
2.
а) 16x² + 8ху + y² = (4x + y )²
б) 49 -14х + x² = (7 - x)²
в) a² + 18a + 81 =(a + 9)²
г) 4 - 12x + 9x² = (2 - 3x)²
_________________________________________________________
Verified answer
N1a) 4a^2 + 4ab + b^2 = (2a + b)^2
б) 25x^2 - 10x + 1 = (5x - 1)^2
в) a^2 + 9c^2 + 6ac = a^2 + 6ac + 9c^2 = (a + 3c)^2
г) a^2 + ab + b^2 = ( a + b)^2
N2
а) 16x^2 + * + y^2 = 16x^2 + 8xy + y^2 = (4x + y )^2 ; * = 8xy
б) 49 - * + x^2 = 49 - 14x + x^2 = (7 - x)^2 ; * = 14x
в) a^2 + 18a + * = a^2 + 18a + 81 = ( a + 9) ^2 ; * = 81
г) * - 12x + 9x^2 = 4 - 12x + 9x^2 = (2 - 3x)^2 ; * = 4