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