factorise chaque expression A = 4x + 12 B = 2x²+ 8x² C = 5xy - 15 D = 2x - 7x E = 7x + 14 F = 8x - 6x
Mathématiques
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Question
factorise chaque expression A = 4x + 12
B = 2x²+ 8x²
C = 5xy - 15
D = 2x - 7x
E = 7x + 14
F = 8x - 6x
B = 2x²+ 8x²
C = 5xy - 15
D = 2x - 7x
E = 7x + 14
F = 8x - 6x
1 Réponse
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1. Réponse monsitecom2016
Réponse :
A = 4x + 12 = 4x + 4 × 3 = 4(x + 3)
B = 2x² + 8x² = 10x²
C = 5xy - 5 × 3 = 5(xy - 3)
D = 2x - 7x = -5x
E = 7x + 14 = 7x + 7 × 2 = 7(x + 2)
F = 8x - 6x = 2x