[tex]-5p^{3}q+5pq^{2}+2p^{2} -2q=-5pq(p^{2}-q)+2(p^{2}-q)=(p^{2}-q)(-5pq+2)[/tex]
Podstawiamy [tex]p=\sqrt{2} +1, q=2\sqrt{2}[/tex]
[tex]((\sqrt{2}+1) ^{2}-2\sqrt{2} )(-5*(\sqrt{2}+1)*2\sqrt{2}+2)=(2+2\sqrt{2} +1-2\sqrt{2})(-10*2-10\sqrt{2}+2)=3*(-18-10\sqrt{2}) = -30\sqrt{2}-48[/tex]