Practice
Factor using Difference of Two Squares.a) 9x2 −16
(3x +4)(3x −4)
(3x +4)(3x −4)
b) 9x4 −196
(3x2 +14)(3x2 −14)
(3x2 +14)(3x2 −14)
c) 25x8 −36
(5x4 +6)(5x4 −6)
(5x4 +6)(5x4 −6)
d) 25x2 −121
(5x +11)(5x −11)
(5x +11)(5x −11)
e) 81x2 −64
(9x +8)(9x −8)
(9x +8)(9x −8)
f) 25x2 −4
(5x +2)(5x −2)
(5x +2)(5x −2)
g) 36x2 −49
(6x +7)(6x −7)
(6x +7)(6x −7)
h) 25x8 −64
(5x4 +8)(5x4 −8)
(5x4 +8)(5x4 −8)
i) 9x2 −169
(3x +13)(3x −13)
(3x +13)(3x −13)
j) 4x8 −9
(2x4 +3)(2x4 −3)
(2x4 +3)(2x4 −3)