Practice
Factor using Difference of Two Squares.a) 4x2 −9
(2x +3)(2x −3)
(2x +3)(2x −3)
b) 49x2 −16
(7x +4)(7x −4)
(7x +4)(7x −4)
c) 81x2 −196
(9x +14)(9x −14)
(9x +14)(9x −14)
d) 4x2 −225
(2x +15)(2x −15)
(2x +15)(2x −15)
e) 16x2 −169
(4x +13)(4x −13)
(4x +13)(4x −13)
f) 16x2 −9
(4x +3)(4x −3)
(4x +3)(4x −3)
g) 49x2 −25
(7x +5)(7x −5)
(7x +5)(7x −5)
h) 25x2 −4
(5x +2)(5x −2)
(5x +2)(5x −2)
i) 81x2 −49
(9x +7)(9x −7)
(9x +7)(9x −7)
j) 49x4 −121
(7x2 +11)(7x2 −11)
(7x2 +11)(7x2 −11)