Rozwiązane

Ktoś mógłby mi to rozpisać bo nie wiem o co chodzi
[tex]|x_{1} - x_{2}| = 4\\[/tex]



Odpowiedź :

Magata5

[tex]|x_{1} - x_{2}| = 4\\\sqrt[]{(x_{1}-x_{2})^{2} } =4 /()^{2}\\(x_{1}-x_{2})^{2} =16\\x_{1}^{2} - 2x_{1}x_{2}+x_{2}^{2}=16\\(x_{1}-x_{2})^{2}-2x_{1}x_{2} = 16\\x_{1}^{2}-2x_{1}x_{2}-2x_{1}x_{2}+x_{2}^{2}=16\\(x_{1}+x_{2})^{2}-4x_{1}x_{2}=16[/tex]

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