Cevap :
[tex]-2x.(+2x-3y)+3y(+5y-2x)= \\-4x^2+6xy+15y^2-6xy= \\-4x^2+15y^2[/tex]
-2x.(+2x-3y)+3y(+5y-2x)
=[tex]-4x^{2}+6xy+15y^{2}-6xy[/tex]
=[tex]-4x^{2}+15y^{2}[/tex]
-2x.(+2x-3y)+3y(+5y-2x) en sade hale getiriniz .
[tex]-2x.(+2x-3y)+3y(+5y-2x)= \\-4x^2+6xy+15y^2-6xy= \\-4x^2+15y^2[/tex]
-2x.(+2x-3y)+3y(+5y-2x)
=[tex]-4x^{2}+6xy+15y^{2}-6xy[/tex]
=[tex]-4x^{2}+15y^{2}[/tex]