Given the expression:
[tex]25a^3b^3-20a^5b^2+5a^3b^2[/tex]Take the common factor:
[tex]5a^3b^2[/tex]So, the expression will be:
[tex]\begin{gathered} 5a^3b^2\cdot(5b-4a^2+1) \\ =5a^3b^2(-4a^2+5b+1) \end{gathered}[/tex]Compare the last result with: U a^x b^y (Wa^2+Vb+Z)
So,
[tex]\begin{gathered} U=5 \\ x=3 \\ y=2 \\ W=-4 \\ V=5 \\ Z=1 \end{gathered}[/tex]