Question
Factoriser les expressions suivante :
B=4/9x² - 49/81
C= 18x² - 48x + 32
D=V3x² + 2V3x + V3
E=5(3x-2) - 5/6(3x-2)
Merci d'avance
B=4/9x² - 49/81
C= 18x² - 48x + 32
D=V3x² + 2V3x + V3
E=5(3x-2) - 5/6(3x-2)
Merci d'avance
Asked by: USER3633
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171 Answers
Answer (171)
re bonjour,
B=4/9x² - 49/81 = (2/3x -7/9)(2/3x+7/9)
C= 18x² - 48x + 32 =2(9x²-24x+16) =2(3x-4)²
D=V3x² + 2V3x + V3 = V3(x²+2x+1) = V3(x+1)²
E=5(3x-2) - 5/6(3x-2) = (3x-2)(5 -5/6) =(3x-2) (30/6-5/6) = (3x-2)(25/6) =25/6(3x-2)
B=4/9x² - 49/81 = (2/3x -7/9)(2/3x+7/9)
C= 18x² - 48x + 32 =2(9x²-24x+16) =2(3x-4)²
D=V3x² + 2V3x + V3 = V3(x²+2x+1) = V3(x+1)²
E=5(3x-2) - 5/6(3x-2) = (3x-2)(5 -5/6) =(3x-2) (30/6-5/6) = (3x-2)(25/6) =25/6(3x-2)