Question

разложите на множители 9x^2-x^6

Answer 1

= ( 3X - X^3) * ( 3X + X^3 )

Answer 2

$9x^{2}-x^{6}=x^{2}(9-x^{4})=x^{2}(3^{2}-(x^{2})^{2})=x^{2}(3-x^{2})(3+x^{2})= \ =x^{2}( sqrt{3}-x)( sqrt{3}+x)(3+x^{2})$