сократите дробь: 6x^2-x-1 ________ 9x^2-1
6x^2-x-1=0
D=25
x1=-1/3
x2=1/2
6x^2-x-1=6(x+1/3)(x-1/2)
(6x^2-x-1)/(9x^2-1)=(2x-1)(3x+1)/(3x-1)(3x+1)=(2x-1)/(3x-1)
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Answers & Comments
6x^2-x-1=0
D=25
x1=-1/3
x2=1/2
6x^2-x-1=6(x+1/3)(x-1/2)
Verified answer
(6x^2-x-1)/(9x^2-1)=(2x-1)(3x+1)/(3x-1)(3x+1)=(2x-1)/(3x-1)