помогите, это срочно!! решите кв.уравнение. 1) 6x+3x²=8x 2) x²=0,04 3) x²+3x=0. Created by sofiko60. algebra-ru

помогите, это срочно!! решите кв.уравнение. 1) 6x+3x²=8x 2) x²=0,04 3) x²+3x=0...

sofiko60 @sofiko60

July 2022 1 4 Report

помогите, это срочно!!
решите кв.уравнение.
1) 6x+3x²=8x
2) x²=0,04
3) x²+3x=0

Answers & Comments

ShirokovP

Verified answer

1) 3x^2 = 2x
3x^2 - 2x = 0
x (3x - 2) = 0

x = 0 ;
3x - 2 = 0 => 3x = 2 => x = 2/3

2) x^2 = 0,04
x1 = - 0,2
x2 = √0,04 = 0,2

3) x^2 + 3x = 0
x (x + 3 ) = 0

x = 0 ;
x +3 = 0 => x = - 3

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