Practice
Factor using Difference of Two Squares.a) 16x2 −225
(4x +15)(4x −15)
(4x +15)(4x −15)
b) 36x2 −49
(6x +7)(6x −7)
(6x +7)(6x −7)
c) 36x2 −169
(6x +13)(6x −13)
(6x +13)(6x −13)
d) 49x2 −16
(7x +4)(7x −4)
(7x +4)(7x −4)
e) 16x2 −169
(4x +13)(4x −13)
(4x +13)(4x −13)
f) 25x2 −16
(5x +4)(5x −4)
(5x +4)(5x −4)
g) 36x8 −49
(6x4 +7)(6x4 −7)
(6x4 +7)(6x4 −7)
h) 81x4 −100
(9x2 +10)(9x2 −10)
(9x2 +10)(9x2 −10)
i) 9x2 −25
(3x +5)(3x −5)
(3x +5)(3x −5)
j) 25x2 −16
(5x +4)(5x −4)
(5x +4)(5x −4)