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Учёба2015
@Учёба2015
June 2022
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Помогитеее:
Решить уравнения:
1) 3-0,4х^2=0
2) 1/4х^2-1/2х=0
3) (3х+2)^2=4+12х
4) х^2-(2х-3)*(1-х)=3
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EgorBlues
0,4х^2=3, x^2=3:0,4; х^2=3*10/4; х^2=30/4;х=+(и - )корень из30/2; 2)1/4х(х-2)=0; х(1)=0; х(2)=2; 3) 9х^2+12х+4=4+12х; 9x^2=0;х=0; 4)х^2-(2х-3-2х^2+3х)=3; х^2-2x^2+3+2х^2-3х-3=0; х^2-3х=0; х(х-3)=0; х(1)=0; х(2)=3))))
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weltkind8
1)3-0,4x^2=0
-0.4x^2=-3 :(-0.4)
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Answers & Comments
-0.4x^2=-3 :(-0.4)