Сократите алгебраическую дробь( дам 15 баллов!!) :
[tex]21 x^{2} +x-10\\14 x^{2} -39x-35[/tex]
[tex]21 x^{2} +x-10\\14 x^{2} -39x-35[/tex]
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Answers & Comments
(х-х1)*(х-х2)
21x^2+x-10=0, x1= -5/7, x2=2/3
14x^2-39x-35=0, x1= -5/7, x2=13/4
[(x+5/7)(x- 2/3)] / [(x+5/7)(x- 13/4)] = (x- 2/3)/(x- 13/4)=4/3 * [(3x-2)/(4x-13)]