Ответ:
Ответ внизу
Объяснение:
x²-3=0 x²=-2x
[tex]x^{2} =3\\x=+-\sqrt{3} \\x=\sqrt{3} \\ x=-\sqrt{3}[/tex] [tex]x^{2} +2x=0\\x*(x+2)=0\\x=0\\x+2=0\\x=0\\x=-2\\[/tex]
x²=2x+3 x²+4x+3=0
[tex]x^{2} -2x-3=0\\x^{2} +x-3x-3=0\\x*(x+1)-3(x+1)=0\\(x+1)*(x+3)=0\\x+1=0\\x+3=0\\x+-1\\x=3[/tex] [tex]x^{2} +3x+x+3=0\\x*(x+3)+x+3=0\\(x+3)*(x+1)=0\\x+3=0\\x+1=0\\x=-3\\x=-1[/tex]
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Answers & Comments
Ответ:
Ответ внизу
Объяснение:
x²-3=0 x²=-2x
[tex]x^{2} =3\\x=+-\sqrt{3} \\x=\sqrt{3} \\ x=-\sqrt{3}[/tex] [tex]x^{2} +2x=0\\x*(x+2)=0\\x=0\\x+2=0\\x=0\\x=-2\\[/tex]
x²=2x+3 x²+4x+3=0
[tex]x^{2} -2x-3=0\\x^{2} +x-3x-3=0\\x*(x+1)-3(x+1)=0\\(x+1)*(x+3)=0\\x+1=0\\x+3=0\\x+-1\\x=3[/tex] [tex]x^{2} +3x+x+3=0\\x*(x+3)+x+3=0\\(x+3)*(x+1)=0\\x+3=0\\x+1=0\\x=-3\\x=-1[/tex]