[tex] a)(x - \sqrt{11 ) {}^{2} } [/tex]
Ajutor dau toate stelele
[tex]b)( - x - \sqrt{11) {}^{2} } [/tex]
[tex]c)( - x + \sqrt{11) {}^{2} } [/tex]
​

Explicație pas cu pas:

a)

[tex](x - { \sqrt{11} })^{2} = {x}^{2} - 2 \sqrt{11}x + 11 [/tex]

[tex](x - { \sqrt{11} })^{2} = 0 \implies x = \sqrt{11} [/tex]

b)

[tex]( - x - \sqrt{11} )^{2} = {x}^{2} + 2 \sqrt{11} x + 11[/tex]

[tex]( - x - \sqrt{11} )^{2} = 0[/tex]

[tex]- x - \sqrt{11} = 0 \implies x = - \sqrt{11} [/tex]

c)

[tex]( - x + \sqrt{11} )^{2} = {x}^{2} - 2 \sqrt{11}x + 11[/tex]

[tex]( - x + \sqrt{11} )^{2} = 0[/tex]

[tex]- x + \sqrt{11} = 0 \implies x = \sqrt{11} [/tex]