смотрите фото...............................
[tex]\star\;\;a^2-b^2=(a-b)(a+b)\;\;\star\\\\\\\dfrac{x^6-x^4}{x^3+x^2}=\dfrac{x^2(x^4-x^2)}{x^2(x+1)}=\dfrac{x^2(x^2-1)}{x+1}=\dfrac{x^2(x-1)(x+1)}{x+1}=x^2(x-1)=x^3-x^2[/tex]
ОТВЕТ: C).
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смотрите фото...............................
[tex]\star\;\;a^2-b^2=(a-b)(a+b)\;\;\star\\\\\\\dfrac{x^6-x^4}{x^3+x^2}=\dfrac{x^2(x^4-x^2)}{x^2(x+1)}=\dfrac{x^2(x^2-1)}{x+1}=\dfrac{x^2(x-1)(x+1)}{x+1}=x^2(x-1)=x^3-x^2[/tex]
ОТВЕТ: C).