Practice
Factor using Difference of Two Squares.a) 9x2 −196
(3x +14)(3x −14)
(3x +14)(3x −14)
b) 64x2 −121
(8x +11)(8x −11)
(8x +11)(8x −11)
c) 49x2 −121
(7x +11)(7x −11)
(7x +11)(7x −11)
d) 4x4 −81
(2x2 +9)(2x2 −9)
(2x2 +9)(2x2 −9)
e) 49x4 −64
(7x2 +8)(7x2 −8)
(7x2 +8)(7x2 −8)
f) 64x2 −225
(8x +15)(8x −15)
(8x +15)(8x −15)
g) 4x2 −225
(2x +15)(2x −15)
(2x +15)(2x −15)
h) 64x8 −225
(8x4 +15)(8x4 −15)
(8x4 +15)(8x4 −15)
i) 16x2 −9
(4x +3)(4x −3)
(4x +3)(4x −3)
j) 81x4 −49
(9x2 +7)(9x2 −7)
(9x2 +7)(9x2 −7)