Practice
Factor using Difference of Two Squares.a) 9x2 −196y4
(3x +14y2)(3x −14y2)
(3x +14y2)(3x −14y2)
b) 25x8 −9y2
(5x4 +3y)(5x4 −3y)
(5x4 +3y)(5x4 −3y)
c) 25x2 −16y2
(5x +4y)(5x −4y)
(5x +4y)(5x −4y)
d) 81x8 −16y2
(9x4 +4y)(9x4 −4y)
(9x4 +4y)(9x4 −4y)
e) 81x4 −169y4
(9x2 +13y2)(9x2 −13y2)
(9x2 +13y2)(9x2 −13y2)
f) 4x12 −225y2
(2x6 +15y)(2x6 −15y)
(2x6 +15y)(2x6 −15y)
g) 25x4 −16y4
(5x2 +4y2)(5x2 −4y2)
(5x2 +4y2)(5x2 −4y2)
h) 36x2 −169y12
(6x +13y6)(6x −13y6)
(6x +13y6)(6x −13y6)
i) 81x2 −16y2
(9x +4y)(9x −4y)
(9x +4y)(9x −4y)
j) 25x2 −4y2
(5x +2y)(5x −2y)
(5x +2y)(5x −2y)