Помогите решить алгебру пожалуйста!❤️ (Фото загружено с заданием). Created by dariapopivchuk07. algebra-ru

Помогите решить алгебру пожалуйста!❤️ (Фото загружено с заданием)...

dariapopivchuk07 @dariapopivchuk07

November 2021 1 10 Report

Помогите решить алгебру пожалуйста!❤️
(Фото загружено с заданием)

Answers & Comments

user256300814

${x}^{2} + x - 5x - 5 = 0 \\ x(x + 1)(x - 5) = 0 \\ x = - 1 \\ x = 5$

$d = {6}^{2} - 4 \times 1 \times 10 \\ d = - 4$

нет действительных корней так как должно быть больше 0

${3x}^{2} - 3x - 4x + 4 = 0 \\ 3x(x - 1) - 4(x - 1) = 0 \\ (x - 1)(3x - 4) = 0 \\ x = 1 \\ 3x = 4 \\ x = \frac{4}{3} \\ x = 1 \frac{1}{3}$

${4x}^{2} + 3x - 22 = 0 \\ {4x}^{2} + 11x - 8x - 22 = 0 \\ x(4x + 11) - 2(4 + 11) = 0 \\ (4x + 11)(x - 2) = 0 \\ x =2 \\ 4x = - 11 \\ x = \frac{ - 11}{4} \\ x = - 2.75$

3 votes Thanks 1

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dariapopivchuk07 July 2023 | 0 Ответы

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dariapopivchuk07 July 2023 | 0 Ответы

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