eyust
eyust
31-12-2016
Mathematics
contestada
Simplfy : (8(x-1)^2)/ (6(x^2-1))
Respuesta :
apologiabiology
apologiabiology
31-12-2016
remember
(ab)/(cd)=(a/c)(b/d)
also
a²-b²=(a-b)(a+b)
so
(8(x-1)²)/(6(x²-1))=
(8/6)((x-1)²)/(x²-1)=
(4/3)((x-1)(x-1))/((x-1)(x+1))=
(4/3)((x-1)/(x+1))=
(4(x-1))/(3(x+1))=
(4x-4)/(3x+3)
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