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