50+25 баллов! Алгебра 8 класс. #228 - упростите выражение: [tex] (\frac{a-2x}{a+4x^{2}+2ax} - \frac{1}{a-2x}) (\frac{a^{3}}{ x^{2} } -8x)[/tex]
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=((a-2x)^2) /x^2-(a^2+2ax+4x^2)/x^2=(a^2-4ax+4x^2-a^2-2ax-4x^2)/x^2=
(-6ax/x^2=-6a/x