### Home > PCT > Chapter Ch9 > Lesson 9.1.1 > Problem 9-14

9-14.

Factor. Homework Help ✎

25 − 49

*x*^{2}*x*^{4}*y*^{2}+*xy*^{5}(

*x*− 1)^{7/2}− (*x*− 1)^{3/2}

This is the difference of two perfect squares.

Factor out the greatest common factor. Then factor again since you have a binomial with two perfect cubes.