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(x²-x) ²=y²
(x²-3x)²=y²


Răspuns :

Răspuns:

[tex](x^{2} -x)^{2} =y^{2}[/tex];

[tex]x^{2*2}-2*x^{2} *x+x^{2} =y^{2}[/tex];

[tex]x^{4} -2x^{3} +x^{2} =y^{2}[/tex].

[tex](x^{2} -3x )^{2} =y^{2}[/tex];

[tex]x^{2*2} -2*x^{2} *3x+(3x)^{2} =y^{2}[/tex];

[tex]x^{4} -6x^{3}+9x^{2} =y^{2}[/tex].