Practice
Factor using Difference of Two Squares.a) 4x2 −169
(2x +13)(2x −13)
(2x +13)(2x −13)
b) 9x2 −121
(3x +11)(3x −11)
(3x +11)(3x −11)
c) 49x2 −25
(7x +5)(7x −5)
(7x +5)(7x −5)
d) 81x4 −121
(9x2 +11)(9x2 −11)
(9x2 +11)(9x2 −11)
e) 36x4 −49
(6x2 +7)(6x2 −7)
(6x2 +7)(6x2 −7)
f) 49x2 −9
(7x +3)(7x −3)
(7x +3)(7x −3)
g) 25x2 −121
(5x +11)(5x −11)
(5x +11)(5x −11)
h) 81x2 −64
(9x +8)(9x −8)
(9x +8)(9x −8)
i) 64x4 −9
(8x2 +3)(8x2 −3)
(8x2 +3)(8x2 −3)
j) 81x2 −25
(9x +5)(9x −5)
(9x +5)(9x −5)