Practice
Factor using Difference of Two Squares.a) 4x2 −169y2
(2x +13y)(2x −13y)
(2x +13y)(2x −13y)
b) 25x4 −196y2
(5x2 +14y)(5x2 −14y)
(5x2 +14y)(5x2 −14y)
c) 25x2 −81y2
(5x +9y)(5x −9y)
(5x +9y)(5x −9y)
d) 9x2 −64y2
(3x +8y)(3x −8y)
(3x +8y)(3x −8y)
e) 16x2 −121y8
(4x +11y4)(4x −11y4)
(4x +11y4)(4x −11y4)
f) 64x2 −225y2
(8x +15y)(8x −15y)
(8x +15y)(8x −15y)
g) 49x2 −9y2
(7x +3y)(7x −3y)
(7x +3y)(7x −3y)
h) 81x2 −121y8
(9x +11y4)(9x −11y4)
(9x +11y4)(9x −11y4)
i) 64x4 −121y12
(8x2 +11y6)(8x2 −11y6)
(8x2 +11y6)(8x2 −11y6)
j) 25x2 −121y12
(5x +11y6)(5x −11y6)
(5x +11y6)(5x −11y6)