Question

I 5. Вычислите: 175³-75³
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175²+175*75+75².
срочно 100 балов​

Answer 1

Ответ:

$\frac{ {175}^{3} - {75}^{3} }{ {175}^{2} + 175 \times 75 + {75}^{2} } = \\ = \frac{(175 - 75)( {175}^{2} + 175 \times 75 + {75}^{2}) }{ {175}^{2} + 175 \times 75 + {75}^{2} } = \\ = 175 - 75 = 100$