решите уравнение 1) 25x³-10x²+x=02) x³-4x²-9x+36=0. Created by Kite45. algebra-ru

Ответ: x1=0; x2=0,2Ответ: x1=4; x2=3; x3=-3

решите уравнение 1) 25x³-10x²+x=02) x³-4x²-9x+36=0...

Kite45 @Kite45

August 2022 1 0 Report

решите уравнение
1) 25x³-10x²+x=0
2) x³-4x²-9x+36=0

Answers & Comments

AnonimusPro

Verified answer

$1) x(25x^2-10x+1)=0
\\x((5x)^2-2*5x*1+1^2)=0
\\x(5x-1)^2=0
\\x_1=0
\\5x-1=0
\\5x=1
\\x_2=0,2$
Ответ: x1=0; x2=0,2
$2)x^2(x-4)-9(x-4)=0
\\(x-4)(x^2-9)=0
\\x-4=0
\\x_1=4
\\x^2-9=0
\\x^2=9
\\x_2=3
\\x_3=-3$
Ответ: x1=4; x2=3; x3=-3

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Verified answer

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