Odpowiedź:
[tex]a)\ \ -x(x-3a+1)=-x*x-x*(-3a)-x*1=-x^2+3ax-x\\\\b)\ \ 3p(p-2)=3p*p-3p*2=3p^2-6p\\\\c)\ \ -4a(-a+5b+6)=-4a*(-a)-4a*5b-4a*6=4a^2-20ab-24a\\\\d)\ \ 5z(-y+x-z)=5z*(-y)+5z*x-5z*z=-5yz+5xz-5z^2\\\\e)\ \ -2m(n-m+3)=-2m*n-2m*(-m)-2m*3=-2mn+2m^2-6m\\\\f)\ \ k(-g-4)=-gk-4k[/tex]
