45ху/24х= 15у/8
7х-14у/3х-6у= 7/3
9х²-49/3х-7= 3х+7
а³-в³/а²+ав+в²= а-в
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45ху/24х= 15у/8
7х-14у/3х-6у= 7/3
9х²-49/3х-7= 3х+7
а³-в³/а²+ав+в²= а-в