Odpowiedź:
[tex]a)\ \ -(3x+1)+(6x+2)=-3x-1+6x+2=3x+1\\\\b)\ \ (4pr-p+3)+(-pr-p-8)=4pr-p+3-pr-p-8=3pr-2p-5\\\\c)\ \ -6xy-(2xy-3x+4y)=-6xy-2xy+3x-4y=-8xy+3x-4y\\\\d)\ \ 2x(x+y)-4(x^2-xy+y)=2x^2+2xy-4x^2+4xy-4y=-2x^2+6xy-4y\\\\e)\ \ 4x(x^2-3x)-(x^3-2x+5)=4x^3-12x^2-x^3+2x-5=3x^3-12x^2+2x-5[/tex]
