Practice
Factor using Difference of Two Squares.a) 49x2 −169y2
(7x +13y)(7x −13y)
(7x +13y)(7x −13y)
b) 9x4 −25y2
(3x2 +5y)(3x2 −5y)
(3x2 +5y)(3x2 −5y)
c) 25x2 −169y4
(5x +13y2)(5x −13y2)
(5x +13y2)(5x −13y2)
d) 9x2 −196y12
(3x +14y6)(3x −14y6)
(3x +14y6)(3x −14y6)
e) 9x2 −16y2
(3x +4y)(3x −4y)
(3x +4y)(3x −4y)
f) 49x2 −169y4
(7x +13y2)(7x −13y2)
(7x +13y2)(7x −13y2)
g) 16x2 −225y2
(4x +15y)(4x −15y)
(4x +15y)(4x −15y)
h) 64x8 −169y2
(8x4 +13y)(8x4 −13y)
(8x4 +13y)(8x4 −13y)
i) 49x12 −81y2
(7x6 +9y)(7x6 −9y)
(7x6 +9y)(7x6 −9y)
j) 16x2 −49y2
(4x +7y)(4x −7y)
(4x +7y)(4x −7y)