Practice
Factor using Difference of Two Squares.a) 9x2 −16
(3x +4)(3x −4)
(3x +4)(3x −4)
b) 25x2 −121
(5x +11)(5x −11)
(5x +11)(5x −11)
c) 25x2 −4
(5x +2)(5x −2)
(5x +2)(5x −2)
d) 25x2 −121
(5x +11)(5x −11)
(5x +11)(5x −11)
e) 81x2 −49
(9x +7)(9x −7)
(9x +7)(9x −7)
f) 4x2 −225
(2x +15)(2x −15)
(2x +15)(2x −15)
g) 16x2 −25
(4x +5)(4x −5)
(4x +5)(4x −5)
h) 25x2 −16
(5x +4)(5x −4)
(5x +4)(5x −4)
i) 64x2 −225
(8x +15)(8x −15)
(8x +15)(8x −15)
j) 25x2 −81
(5x +9)(5x −9)
(5x +9)(5x −9)