Practice
Factor using Difference of Two Squares.a) 9x2 −169y2
(3x +13y)(3x −13y)
(3x +13y)(3x −13y)
b) 25x2 −196y2
(5x +14y)(5x −14y)
(5x +14y)(5x −14y)
c) 25x2 −36y2
(5x +6y)(5x −6y)
(5x +6y)(5x −6y)
d) 49x2 −36y2
(7x +6y)(7x −6y)
(7x +6y)(7x −6y)
e) 64x2 −81y2
(8x +9y)(8x −9y)
(8x +9y)(8x −9y)
f) 49x8 −121y4
(7x4 +11y2)(7x4 −11y2)
(7x4 +11y2)(7x4 −11y2)
g) 9x4 −196y2
(3x2 +14y)(3x2 −14y)
(3x2 +14y)(3x2 −14y)
h) 25x2 −16y12
(5x +4y6)(5x −4y6)
(5x +4y6)(5x −4y6)
i) 49x12 −225y2
(7x6 +15y)(7x6 −15y)
(7x6 +15y)(7x6 −15y)
j) 64x2 −121y2
(8x +11y)(8x −11y)
(8x +11y)(8x −11y)