Предмет: Алгебра, автор: rumyanm

сократите дробь а2 дробь а-b:а дробь а2-b2. Помогите пожалуйста.

Ответы

Автор ответа: Аноним
1

 \frac{a {}^{2} }{a - b}  \div  \frac{a - b}{a {}^{2} - b ^{2}  }  \\  \\  \frac{a {}^{2} }{a - b}   \times  \frac{a { }^{2}  - b {}^{2} }{a - b}  \\  \\  \frac{a {}^{2} }{a - b}  \times  \frac{(a - b) \times (a + b)}{a - b}  \\  \\ a {}^{2}  \times  \frac{a + b}{a - b}  \\  \\  \frac{a {}^{2} \times  (a + b)}{a - b}  \\  \\  \frac{a {}^{3}  + a {}^{2} b}{a - b}
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