Помогите решить уравнения, пожалуйста.
[tex] 6,9 x^{2} +3,3х=0
[/tex] 3(х-2)-х-1=х+4
4(х-2)-1=5х+5
х³-8/125=0
[tex] 6,9 x^{2} +3,3х=0
[/tex] 3(х-2)-х-1=х+4
4(х-2)-1=5х+5
х³-8/125=0
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Answers & Comments
-1+3(x-2)-x=x+4
3x-6-x-1=x+4
(3x-x)+(-1-6)=x+4
2x+(1-6)=x+4
2x+(-7)=x+4
(2x-x)-7=(x-x) +4
x-7=(x-x) +4
x-7=4
x+(7-7)=4+7
x=4+7
x=11