Practice
Factor using Difference of Two Squares.a) 25x2 −64y2
(5x +8y)(5x −8y)
(5x +8y)(5x −8y)
b) 49x8 −225y2
(7x4 +15y)(7x4 −15y)
(7x4 +15y)(7x4 −15y)
c) 64x2 −81y12
(8x +9y6)(8x −9y6)
(8x +9y6)(8x −9y6)
d) 64x8 −169y2
(8x4 +13y)(8x4 −13y)
(8x4 +13y)(8x4 −13y)
e) 81x2 −16y2
(9x +4y)(9x −4y)
(9x +4y)(9x −4y)
f) 64x2 −169y2
(8x +13y)(8x −13y)
(8x +13y)(8x −13y)
g) 81x2 −49y2
(9x +7y)(9x −7y)
(9x +7y)(9x −7y)
h) 49x2 −81y2
(7x +9y)(7x −9y)
(7x +9y)(7x −9y)
i) 9x2 −4y2
(3x +2y)(3x −2y)
(3x +2y)(3x −2y)
j) 49x2 −4y4
(7x +2y2)(7x −2y2)
(7x +2y2)(7x −2y2)