Предмет: Алгебра, автор: sasha8211

сократите дробь а3-в3/а4-в4( 3 и 4 это степени)

Ответы

Автор ответа: belcatya
0
 frac{ a^{3}- b^{3} }{ a^{4}- b^{4}  } = frac{(a-b)(a ^{2}+ab+ b^{2}  )}{(a^{2}+ b^{2})(a-b)(a+b)  } = frac{(a ^{2}+ab+ b^{2}  )}{(a^{2}+ b^{2})(a+b)  }
Автор ответа: sasha8211
0
Спасибо большое,мы так и сделали,просто думали,что очень большой ответ и сомнивались в его правильности.
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