Practice
Factor using Difference of Two Squares.a) 49x2 −169y2
(7x +13y)(7x −13y)
(7x +13y)(7x −13y)
b) 25x2 −121y2
(5x +11y)(5x −11y)
(5x +11y)(5x −11y)
c) 9x4 −16y8
(3x2 +4y4)(3x2 −4y4)
(3x2 +4y4)(3x2 −4y4)
d) 49x2 −100y12
(7x +10y6)(7x −10y6)
(7x +10y6)(7x −10y6)
e) 25x2 −196y8
(5x +14y4)(5x −14y4)
(5x +14y4)(5x −14y4)
f) 81x2 −64y2
(9x +8y)(9x −8y)
(9x +8y)(9x −8y)
g) 25x2 −9y4
(5x +3y2)(5x −3y2)
(5x +3y2)(5x −3y2)
h) 64x2 −25y8
(8x +5y4)(8x −5y4)
(8x +5y4)(8x −5y4)
i) 64x2 −121y12
(8x +11y6)(8x −11y6)
(8x +11y6)(8x −11y6)
j) 9x2 −25y2
(3x +5y)(3x −5y)
(3x +5y)(3x −5y)