Решите уравнения: 3x(x+1)-2x(5x+3)=7x(2-x)+4 8(x^2-1)-3x(x+2)=5x^2-6x-5. Created by Nastyaash1. algebra-ru

Решите уравнения: 3x(x+1)-2x(5x+3)=7x(2-x)+4 8(x^2-1)-3x(x+2)=5x^2-6x-5...

July 2022 1 33 Report

Решите уравнения: 3x(x+1)-2x(5x+3)=7x(2-x)+4

8(x^2-1)-3x(x+2)=5x^2-6x-5

Answers & Comments

irkarom $3x(x+1)-2x(5x+3)=7x(2-x)+4\\
3x^2+3x-10x^2-6x=14x-7x^2+4\\
3x^2+3x-10x^2-6x-14x+7x^2-4=0\\
-17x-4=0\\
-17x=4\\
x=-\frac4{17}\\
\\ \\
8(x^2-1)-3x(x+2)=5x^2-6x-5\\
8x^2-8-3x^2-6x-5x^2+6x+5=0\\
0x-3=0\\
0x=3\\
x - kornej \ \ nety$

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Nastyaash1 Спасибо

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Nastyaash1 July 2022 | 0 Ответы

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