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