СРОЧНО!! Вычислите наиболее рациональным способом: 27&and;3 + 19&and;3 / 46 - 27 * 19. Created by Sadir228. algebra-ru

Ответ:64Объяснение:

46 - 27 * 19...

Sadir228 @Sadir228

August 2021 1 10 Report

СРОЧНО!! Вычислите наиболее рациональным способом: 27∧3 + 19∧3 / 46 - 27 * 19

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Ответ:

Объяснение:

$\tt\dfrac{27^3+19^3}{46} -27\cdot19=\dfrac{(27+19)(27^2-27\cdot19+19^2)}{46} -27\cdot19=\\\\\\=\dfrac{46\cdot(27^2-27\cdot19+19^2)}{46} -27\cdot19=\\\\\\=27^2-27\cdot19+19^2-27\cdot19=\\\\\\=27^2-2\cdot27\cdot19+19^2=(27-19)^2=8^2=64$

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