school work
posted by sherri on .
Factor the following polynomials
9x^2
4x^2+8136
4y2^+16y+16
x2^25/x+5

assistance needed

i need assistance yes

what do u need help on

hints
first one is a basic example of "difference of squares"
second does not factor
third is a perfect square, (2y+4)^2
the last one, factor the top as a difference of squares, then cancel one of those factors with the denominator.