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