1. Factor the following as a difference of squares  

 

x2−25

81x%2−100

4.  Factor the following as a difference of squares

a) x^2−25

b) x^2−169

c) 81 x^2−100

d) 64−121x^2

Show ALL of your work
Factor each of the following as a difference of squares.

a) x^2−36

b) z^2−49

c) y^2−81

d) b^2−4

d) −w^2 +1

e) 4a^2−36

f) t^2−9

g) 5x^2−45y^2

What is a difference of squares that has a factor of ?