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Justine01234
@Justine01234
May 2019
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Bonjour,
Merci à ceux qui m'aideront
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elmessaoudiamina
Verified answer
A
B
2)C
D
E
F
1 votes
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aymanemaysae
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Bonsoir ;
1)
A = 5x² + x = x(5x + 1) .
B = (8x - 1)² - 2x(8x - 1) = (8x - 1)(8x - 1 - 2x) = (8x - 1)(6x - 1) .
2)
C = x² - 24x + 144 = x² - 2 * 12 * x + 12² = (x - 12)² .
D = 4 + 12y + 9y² = (3y)² + 2 * 2 * (3y) + 2² = (3y + 2)² .
E = x² - 100 = x² - 10² = (x - 10)(x + 10) .
F = (x + 7)² - 25 = (x + 7)² - 5² = (x + 7 - 5)(x + 7 + 5) = (x + 2)(x + 12) .
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Lista de comentários
Verified answer
AB
2)C
D
E
F
Verified answer
Bonsoir ;1)
A = 5x² + x = x(5x + 1) .
B = (8x - 1)² - 2x(8x - 1) = (8x - 1)(8x - 1 - 2x) = (8x - 1)(6x - 1) .
2)
C = x² - 24x + 144 = x² - 2 * 12 * x + 12² = (x - 12)² .
D = 4 + 12y + 9y² = (3y)² + 2 * 2 * (3y) + 2² = (3y + 2)² .
E = x² - 100 = x² - 10² = (x - 10)(x + 10) .
F = (x + 7)² - 25 = (x + 7)² - 5² = (x + 7 - 5)(x + 7 + 5) = (x + 2)(x + 12) .