СРОЧНО! помогите, решите уравнение : x³+4x=5x². Created by sofiko60. algebra-ru

СРОЧНО! помогите, решите уравнение : x³+4x=5x²...

sofiko60 @sofiko60

July 2022 1 4 Report

СРОЧНО! помогите,
решите уравнение :
x³+4x=5x²

Answers & Comments

AnonimusPro

Verified answer

$x^3+4x=5x^2
\\x^3-5x^2+4x=0
\\x(x^2-5x+4)=0
\\x_1=0
\\x^2-5x+4=0
\\D=25-16=9=3^2
\\x_2= \frac{5+3}{2} =4
\\x_3= \frac{2}{2} =1$
Ответ: x1=0; x2=4; x3=1

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