Practice
Factor using Difference of Two Squares.a) 16x8 −225
(4x4 +15)(4x4 −15)
(4x4 +15)(4x4 −15)
b) 9x8 −169
(3x4 +13)(3x4 −13)
(3x4 +13)(3x4 −13)
c) 16x2 −9
(4x +3)(4x −3)
(4x +3)(4x −3)
d) 49x2 −64
(7x +8)(7x −8)
(7x +8)(7x −8)
e) 25x2 −144
(5x +12)(5x −12)
(5x +12)(5x −12)
f) 49x2 −121
(7x +11)(7x −11)
(7x +11)(7x −11)
g) 49x2 −81
(7x +9)(7x −9)
(7x +9)(7x −9)
h) 4x2 −9
(2x +3)(2x −3)
(2x +3)(2x −3)
i) 36x2 −25
(6x +5)(6x −5)
(6x +5)(6x −5)
j) 36x4 −25
(6x2 +5)(6x2 −5)
(6x2 +5)(6x2 −5)