Question

(x²-x) ²=y²
(x²-3x)²=y²

Answer 1

Răspuns:

$(x^{2} -x)^{2} =y^{2}$;

$x^{2*2}-2*x^{2} *x+x^{2} =y^{2}$;

$x^{4} -2x^{3} +x^{2} =y^{2}$.

$(x^{2} -3x )^{2} =y^{2}$;

$x^{2*2} -2*x^{2} *3x+(3x)^{2} =y^{2}$;

$x^{4} -6x^{3}+9x^{2} =y^{2}$.