Practice
Factor using Difference of Two Squares.a) 81x2 −64
(9x +8)(9x −8)
(9x +8)(9x −8)
b) 16x2 −121
(4x +11)(4x −11)
(4x +11)(4x −11)
c) 4x2 −121
(2x +11)(2x −11)
(2x +11)(2x −11)
d) 16x2 −81
(4x +9)(4x −9)
(4x +9)(4x −9)
e) 16x2 −9
(4x +3)(4x −3)
(4x +3)(4x −3)
f) 81x2 −100
(9x +10)(9x −10)
(9x +10)(9x −10)
g) 64x2 −49
(8x +7)(8x −7)
(8x +7)(8x −7)
h) 25x2 −16
(5x +4)(5x −4)
(5x +4)(5x −4)
i) 25x2 −36
(5x +6)(5x −6)
(5x +6)(5x −6)
j) 16x2 −121
(4x +11)(4x −11)
(4x +11)(4x −11)