Practice
Factor using Difference of Two Squares.a) 49x2 −4
(7x +2)(7x −2)
(7x +2)(7x −2)
b) 9x2 −121
(3x +11)(3x −11)
(3x +11)(3x −11)
c) 25x4 −121
(5x2 +11)(5x2 −11)
(5x2 +11)(5x2 −11)
d) 36x8 −169
(6x4 +13)(6x4 −13)
(6x4 +13)(6x4 −13)
e) 81x2 −16
(9x +4)(9x −4)
(9x +4)(9x −4)
f) 64x2 −169
(8x +13)(8x −13)
(8x +13)(8x −13)
g) 49x2 −64
(7x +8)(7x −8)
(7x +8)(7x −8)
h) 64x2 −9
(8x +3)(8x −3)
(8x +3)(8x −3)
i) 16x4 −49
(4x2 +7)(4x2 −7)
(4x2 +7)(4x2 −7)
j) 64x2 −225
(8x +15)(8x −15)
(8x +15)(8x −15)