помогите даю 20 балов пж полностью . Created by princesska1315. algebra-ru

Ответ:Ответ: х = – 4 и х = 10Ответ: х = 2

помогите даю 20 балов пж полностью ...

princesska1315 @princesska1315

July 2022 1 9 Report

помогите даю 20 балов
пж полностью

Answers & Comments

hinatachan00

Ответ:

$1) \frac{x { }^{2} - 6x }{x - 4} = \frac{40}{x - 4} \\ x {}^{2} - 6x = 40 \\ x {}^{2} - 6 -x - 40 = 0 \\ x {}^{2} + 4x - 10x - 40 = 0 \\ x(x + 4) - 10(x + 4) = 0 \\ (x + 4)(x - 10) = 0 \\ x + 4 = 0 \\ x - 10 = 0 \\ x = - 4 \\ x = 10$

$x - 10 = 0 \\ x = - 4 \\ x = 10$

Ответ: х = – 4 и х = 10

$2) \frac{x {}^{2} + 11x}{ x + 13} = \frac{26}{x + 13} \\ x {}^{2} + 11 x = 26 \\ x {}^{2} + 11x - 26 = 0 \\ x {}^{2} + 13x - 2x - 26 = 0 \\ x(x + 13) - 2(x + 13) = 0 \\ (x + 13)(x - 2) = 0 \\ x + 13 = 0 \\ x$

$x - 2 = 0 \\ x = - 13 \\ x = 2 \\$

Ответ: х = 2

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