Practice
Factor using Difference of Two Squares.a) 49x4 −64
(7x2 +8)(7x2 −8)
(7x2 +8)(7x2 −8)
b) 9x2 −121
(3x +11)(3x −11)
(3x +11)(3x −11)
c) 49x2 −9
(7x +3)(7x −3)
(7x +3)(7x −3)
d) 16x4 −25
(4x2 +5)(4x2 −5)
(4x2 +5)(4x2 −5)
e) 25x8 −64
(5x4 +8)(5x4 −8)
(5x4 +8)(5x4 −8)
f) 64x2 −9
(8x +3)(8x −3)
(8x +3)(8x −3)
g) 9x2 −49
(3x +7)(3x −7)
(3x +7)(3x −7)
h) 9x8 −100
(3x4 +10)(3x4 −10)
(3x4 +10)(3x4 −10)
i) 4x2 −25
(2x +5)(2x −5)
(2x +5)(2x −5)
j) 25x2 −9
(5x +3)(5x −3)
(5x +3)(5x −3)